Name ___________________________ Period__________ Date ___________ RAT4 uc e STUDENT PAGES od RATIONAL NUMBERS Student Pages for Packet 4: Rational Number Concepts Terminating Decimals Use a variety of strategies to convert between fractions and terminating decimals. Demonstrate conversion fluency between common fractions and decimals. Compute with simple fractions. 1 RAT4.2 Repeating Decimals Explore patterns in repeating decimals. Use a variety of strategies to convert between fractions and repeating decimals. Compare, order, and add common fractions and decimals. 7 RAT4.3 Ordering Rational Numbers on a Number Line Compare and order positive and negative fractions. Compare and order positive and negative decimals. Convert between fractions and decimals, and use these representations for estimation. Distinguish between terminating and repeating decimals. 16 Fraction and Decimal Games Identify equivalent fractions and decimals. Order fractions and decimals. 23 pl e: D o N ot R ep r RAT4.1 m RAT4.4 Vocabulary, Skill Builders, and Review 26 Sa RAT4.5 Rational Numbers Unit (Student Pages) RAT4 – SP Rational Number Concepts WORD BANK (RAT4) Definition Example or Picture uc e Word od benchmark fraction ep r decimal ot R improper fraction N integer pl e: D negative fraction o mixed number m rational numbers Sa repeating decimal terminating decimal Rational Numbers Unit (Student Packet) RAT4 – SP0 Rational Number Concepts 4.1 Terminating Decimals Ready (Summary) Set (Goals) We will learn various strategies to convert between fractions and terminating decimals. uc e TERMINATING DECIMALS Go (Warmup) ep r od Use a variety of strategies to convert between fractions and terminating decimals. Demonstrate conversion fluency between common fractions and decimals. Compute with simple fractions. pl e: D o N ot R Use the hundred grids to find the decimal equivalents for the following. 1 1 1. = _______ 2. = _______ 2 4 Write the decimal value for each. 3. 5. $________ 4. one-fourth of a dollar $________ 1 = _____ 10 6. 2 = _____ 10 7. 7 = _____ 10 8. 9 = _____ 10 1 = _____ 100 10. 2 = _____ 100 11. 17 = _____ 100 12. 90 = _____ 100 m 9. one-half of a dollar Sa 13. Which of the two values from problems 5-12 are equivalent? Rational Numbers Unit (Student Packet) RAT4 – SP1 Rational Number Concepts 4.1 Terminating Decimals 1. What is the relationship between 1 1 and ? 2 4 2. Here are two different methods to find the decimal equivalent for Method 2 1 = ______________ 4 1 4 N 0 4 pl e: D o Decimal 4. Show how to use the decimal equivalent for addition or multiplication. 5. Show how to use the decimal equivalent for 2 4 1 =___________ 4 3 4 4 4 1 3 to find the decimal equivalent for by 4 4 3 4 to find the decimal equivalent for by 4 4 Sa m subtraction. 1 = 0.5 = 0. ___ ___ 2 __________ is __________ Therefore 3. Complete the table. Fraction 1 of 2 ot R Therefore Use the fact that ep r 1 with a denominator 4 1 that is a power of 10. = 4 100 Rename the fraction od Method 1 1 4 uc e ALL ABOUT FOURTHS 6. Is it true that 4 2 = ? Explain. 4 2 Rational Numbers Unit (Student Packet) RAT4 – SP2 Rational Number Concepts 4.1 Terminating Decimals BENCHMARK FRACTIONS AND DECIMALS Write decimal equivalents for each of the following benchmark fractions. 2 = _____ 10 3 = _____ 10 7 = _____ 10 9 = _____ 10 od 1 = _____ 10 1. uc e A benchmark fraction refers to a fraction that is easily recognizable. Benchmark fractions are commonly used in everyday experiences. 2 = _____ 100 9 = _____ 100 10 = _____ 100 99 = _____ 100 ot R 1 = _____ 100 2. ep r Describe an easy way to remember these kinds of fraction-decimal equivalents. Describe an easy way to remember these kinds of fraction-decimal equivalents. 1 = _____ 4 2 = _____ 4 N 1 = _____ 2 3. 3 = _____ 4 pl e: D o Describe an easy way to remember these kinds of fraction decimal equivalents. 4. What is the relationship between m equivalent for 1 . 5 Sa 5. What is the relationship between equivalent for 1 . 8 Rational Numbers Unit (Student Packet) 1 1 and ? 5 10 1 1 and ? 8 4 Use this relationship to find a decimal Use this relationship to find a decimal RAT4 – SP3 Rational Number Concepts 4.1 Terminating Decimals USING BENCHMARK FRACTIONS TO FIND DECIMALS 3 5 a. 1 8 b. 3 8 c. 5 8 a. 1 20 b. 2 20 a. 1 25 b. a. 1 50 b. 4 5 d. 7 8 c. 3 20 d. 9 20 2 25 c. 5 25 d. 14 25 2 50 c. 15 50 d. 43 50 m 5. d. od c. ep r 2 5 pl e: D 4. b. ot R 3. 1 5 N 2. a. o 1. uc e Use your knowledge about basic arithmetic and benchmark fractions to change the following fractions to decimals (no approximations). Do not use the long division algorithm or a calculator. You may do the problems in any order. Sa 6. Why are all of the decimals above called “terminating decimals?” Rational Numbers Unit (Student Packet) RAT4 – SP4 Rational Number Concepts 4.1 Terminating Decimals MORE BENCHMARK FRACTIONS AND DECIMALS Describe the relationship between each pair of fractions. 1 1 and 25 50 1 1 and 25 100 3. od 2. uc e 1 1 and 50 100 1. 4. Fact 2: 5 = 0.5 10 5 20 twentieths are half of tenths o Fact 2: pl e: D 5. 5 = 1 5 5 1 4 5 5 5 N Show work here: Fact 1: = ________ ot R Fact 1: ep r Use the given facts to find the decimal equivalents for each fraction. fraction 4 5 decimal = ________ fraction decimal Show work here: Fact 1: m 6. Fact 2: 1 = 0.5 2 1 1 is one-tenth of 20 2 1 20 = ________ fraction decimal Sa Show work here: Rational Numbers Unit (Student Packet) RAT4 – SP5 Rational Number Concepts 4.1 Terminating Decimals USING DIVISION TO FIND TERMINATING DECIMALS a poses the division problem of dividing a by b. Therefore, we can change a b fraction to a decimal using a division procedure. uc e The fraction 3 into a decimal using a division procedure. 8 Method 1: Traditional Algorithm Method 2: Chunking Algorithm 375 8 3000 24 60 56 40 40 0 3000 8 375 Since 3000 is 1000 times larger than 3.000, we must divide the result by 1000. 375 0.375 1000 N ot R 2400 300 600 560 +70 40 40 +5 0 375 Think: We want to divide 3.000 by 8. With chunking, we will divide 3000 by 8 to make the division easier. ep r .375 8 3.000 od Example: Change 2. pl e: D 7 8 3 20 3. 11 25 Sa m 1. o Use division to convert each fraction to a decimal. Rational Numbers Unit (Student Packet) RAT4 – SP6 Rational Number Concepts 4.2 Repeating Decimals uc e REPEATING DECIMALS Set (Goals) We will change thirds, sixths, and ninths to decimals and explore patterns in repeating decimals. We will continue to convert between fractions and decimals. We will continue to compare, order, and add simple fractions and decimals. Explore patterns in repeating decimals. Use a variety of strategies to convert between fractions and repeating decimals. Compare, order, and add common fractions and decimals. ot R Go (Warmup) ep r od Ready (Summary) Change the following fractions to decimals using any method. 1 2 2. 5. 17 100 6. 1 4 3. 1 8 4. 1 10 11 25 8. 4 5 o N 1. 23 50 pl e: D 7. m 9. List all of the decimal values above in order from least to greatest. Sa ______ ______ ______ Rational Numbers Unit (Student Packet) ______ ______ ______ ______ ______ RAT4 – SP7 Rational Number Concepts 4.2 Repeating Decimals INVESTIGATING ONE-THIRD 2. ot R ep r od 1. uc e Each of these squares represents one square unit. This square is divided into tenths. Shade one-third of it. This illustrates that 1 = _____ tenths + _____ of a tenth. 3 3. 4. m pl e: D o N This square represents one whole. Shade one-third of it. This illustrates that 1 = _____ of a whole. 3 Sa This square is divided into ____________. Shade one-third of it. This illustrates that 1 = _____ tenths + _____ hundredths 3 + ______ of a hundredth This square is divided into ____________. Shade one-third of it. This illustrates that 1 = _____ tenths + _____ hundredths 3 + ______ thousandths + ______ of a thousandth. Rational Numbers Unit (Student Packet) RAT4 – SP8 Rational Number Concepts 4.2 Repeating Decimals INVESTIGATING ONE-THIRD (continued) 1 cannot be written as a fraction with a denominator of 3 10, 100, or 1,000. Explain why this is true. 6. Use a division algorithm to find decimal equivalents for 1 . 3 B. C. 3 1. 0 0 3 1. 0 0 0 ep r 3 1. 0 od A. uc e 5. The previous page illustrates that This division shows that 1 = 3 ot R This division shows that 1 = 3 This division shows that 1 = 3 pl e: D o N 1 , when converted to a decimal by division, results in a repeating 3 decimal. That is, the decimal part is a pattern of digits that repeats infinitely from some point on. To show the repeating pattern, use a series of dots (…) or a repeat bar. Problem 6 illustrates that 7. Show some different decimal representations of 1 using a series of dots. 3 1 = 0.33... = 0.333... = ________ = ________ 3 Sa m 8. Show some different decimal representations of 9. Sometimes 1 using a repeat bar. 3 1 = 0.3 = 0.33 = ___________ = ___________ 3 1 1 1 is written as 0.33 . What do you think the in the decimal means? 3 3 3 Rational Numbers Unit (Student Packet) RAT4 – SP9 Rational Number Concepts 4.2 Repeating Decimals THIRDS AND NINTHS 1. Fact 2: 1 = .333... 3 2 1 is twice 3 3 2 3 fraction 1 = .333... 3 1 1 Fact 2: is ________ of 9 3 Fact 1: 1 = 0. ______ 9 2 1 Fact 2: is __________ 9 9 Fact 1: o decimal = ________ fraction 4 9 pl e: D 4. = ________ ep r 2 9 1 = 0. ______ 9 4 2 Fact 2: is __________ 9 9 Fact 1: decimal fraction N 3. 1 9 ot R 2. = ________ od Fact 1: uc e Use the given facts to find the decimal equivalents for each fraction. decimal = ________ fraction decimal m 5. Continue the pattern for ninths. Find these decimal equivalents. Sa 3 = 9 5 = 9 Rational Numbers Unit (Student Packet) 6 = 9 7 = 9 8 = 9 RAT4 – SP10 Rational Number Concepts 4.2 Repeating Decimals 1. Use a division algorithm to find decimal equivalents for A. 1 . 6 B. C. 6 1. 0 0 0 6 1. 0 0 0 0 ep r od 6 1. 0 0 uc e SIXTHS This division shows that 1 = 6 ot R This division shows that 1 = 6 This division shows that 1 = 6 1 , when converted to a decimal by division, results in a terminating or a 6 repeating decimal? Explain. N 2. Does it appear that 1 using a series of dots. 6 o 3. Show some different decimal representations pl e: D 1 = 0.16... = 0.1666... = ________ = ________ 6 4. Show some different decimal representations 1 using repeat bar. 6 1 = 0.16 = 0.166 = ___________ = ___________ 6 Sa m 5. Why do you think it is necessary to show more than two decimal places for 6. Challenge: Sometimes 1 ? 6 2 2 1 is written as 0.16 . What do you think the means? 3 3 6 Rational Numbers Unit (Student Packet) RAT4 – SP11 Rational Number Concepts 4.2 Repeating Decimals COMPARING FRACTIONS AND DECIMALS 1 = 3 1 = 6 od he is wrong. 1 1 = 0.1666… = 0.16 , then = 0.1444… = 0.14 . Explain why 6 4 ep r 1. Dilbert thinks that since 1 = 9 2. 3. _____ 4. 1 3 7 9 6. 1 9 _____ 0.3 0.3 _____ 0.3 _____ 0.3 11. 1 3 _____ 0.2 3 9 10. 1 3 _____ 0.3 12. 1 6 _____ 0.3 _____ 0.333 3 9 9. pl e: D 8. 1 3 7. o 1 3 _____ N 5. ot R Use the symbols <, =, or > to compare. 1 9 uc e Copy the decimal equivalents for the following fractions from the previous pages. _____ 0.333 13. 0.16 _____ 2 12 0.2 2 9 _____ Sa m 14.Order the following from least to greatest. (Hint: two numbers have the same value, so it does not matter which of these is listed first.) 1 6 _______ 2 3 0.222 _______ _______ Rational Numbers Unit (Student Packet) 2 9 _______ 0.2 _______ 0.16 _______ RAT4 – SP12 Rational Number Concepts 4.2 Repeating Decimals PRACTICE WITH FRACTIONS AND DECIMALS 1 = 3 1 = 6 uc e Copy the decimal equivalents for the following fractions from the previous pages. 1 = 9 Change the fractions into decimals. 2 6 6. 7 9 3. 3 6 8 9 od 5. 6 9 4. ep r 2. 4 6 7. 5 6 8. ot R 5 9 N 1. Use the symbols <, =, or > to compare. 10. 1 6 _____ pl e: D 1 3 o 9. 12. 11. 3 7 _____ 3 8 13. 0.56 ____ 2 6 _____ 3 9 14. 5 9 5 5 _____ 8 9 0.42 _____ 0.4 m 15. Order the following from least to greatest. (Hint: Two numbers have the same value, so it does not matter which of these is listed first.) Sa 1 3 _______ 4 9 0.333 _______ Rational Numbers Unit (Student Packet) _______ 2 9 _______ 0.3 _______ 0.3 _______ RAT4 – SP13 Rational Number Concepts 4.2 Repeating Decimals ADDING RATIONAL NUMBERS 1. 1 1 2 4 ep r ot R 1 3 4 8 1 2 3 3 pl e: D 4. 2 3 5 10 N 3. 2 1 _______ 4 4 o 2. 0. 5 +0. 2 5 0.5 + 0.25 od Change each fraction expression to a decimal expression and add uc e Add each fraction expression 1 1 3 6 m 5. Sa 6. Which problems above were easier to add as fractions? Explain. 7. Which problems above were easier to add as decimals? Explain. Rational Numbers Unit (Student Packet) RAT4 – SP14 Rational Number Concepts 4.2 Repeating Decimals BELIEVE IT OR NOT 2. 3 =1 can also be written as 0._______. 3 Fact 1: 1 = 0.16666... 6 Fact 2: 1 2 = = 0.33333... 3 6 decimal Therefore, 0.______ = 1 3 6 = ________ fraction decimal 3 1 1 can also be written as 0.______. Therefore, 0._______ = 6 2 2 pl e: D o This shows that fraction od This shows that = ________ ep r Fact 2: 3 3 N 1. 1 = .333... 3 3 1 is three times 3 3 ot R Fact 1: uc e Use the given facts to find the decimal equivalents for each fraction. Fact 1: 1 = 0.999…. Fact 2: 5 1 = 1 6 6 m 3. 1 = 0.30 0.030 0.0030... 3 1 1 Fact 2: is one-half of 6 3 Sa Fact 1: 4. Rational Numbers Unit (Student Packet) 5 6 = ________ fraction 1 6 decimal = ________ fraction decimal RAT4 – SP15 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line uc e ORDERING RATIONAL NUMBERS ON A NUMBER LINE Ready (Summary) Set (Goals) We will practice ordering rational numbers, including positive and negative fractions and decimals, on a number line. Compare and order positive and negative fractions. Compare and order positive and negative decimals. Convert between fractions and decimals, and use these representations for estimation. Distinguish between terminating and repeating decimals. od ep r ot R Go (Warmup) Draw a circle around each number that represents a terminating decimal and a square around each number that represents a repeating decimal. Then use , , or = to make each statement true. 1. _____ 1 6 Think 2. 8. 2 1 6 = 0.5 (terminating → circle) = 0.1666… = 0.16 _____ 0.3 3. 1 3 _____ 0.33 3 9 _____ 3 8 5. 7 8 _____ 14 16 3 5 _____ 0.35 7. 0.4 _____ 2 5 _____ 0.7 9. -9 Sa 6. 1 0.3 m 4. pl e: D o 1 2 N 0.7 Rational Numbers Unit (Student Packet) _____ (repeating → square) -12 RAT4 – SP16 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line NEGATIVE FRACTIONS uc e Use the number line below: 1. Write in the fractions for each marking that are greater than 0. These are positive fractions. 2. Write in the fractions for each marking that are less than 0. These are negative fractions. -1 ep r od 3. Write the decimal equivalent under each fraction on the number line. 0 1 1 1 3 -1 - 1 3 2 3 - 2 3 pl e: D o N 0 ot R 4. Estimate the location of each number on the number line below. Then write the decimal equivalents below each fraction. 5. Estimate the location of each number on the number line below. Then write the decimal equivalents below each fraction. 1 -1 2 5 - 1 5 2 10 - 4 5 - 6 10 Sa m 0 Rational Numbers Unit (Student Packet) RAT4 – SP17 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line NEGATIVE MIXED NUMBERS Read as: 1 and 1 2 -1 and - 1 2 1 3 = 2 2 pl e: D 1 1 -1 – 2 -2 o 0 -1 1 2 1 (-1) + - 2 ot R N As a difference: 1 2 “negative one and one-half” 1 (1) + 2 As a sum: As an improper fraction -1 “one and one-half” The combination of: Graph: 1 2 od 1 Example: A negative mixed number is the combination of a negative integer and a negative fraction. uc e A positive mixed number is the combination of a positive integer and a positive fraction. ep r Definition: - 1 2 -1 = 1 - 1 2 0 = - 3 2 Fill in the blanks. Mixed number As a sum ______ and ______ ______ + ______ 1 3 ______ and ______ ______ + ______ ______ – ______ 2 5 ______ and ______ ______ + ______ ______ – ______ 1 3 m 1. 2 The combination of Sa 2. -2 3. -3 Rational Numbers Unit (Student Packet) As a difference RAT4 – SP18 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line NEGATIVE MIXED NUMBERS (continued) 1 3 6. -3 2 5 ep r 5. -2 od 1 3 ot R 4. 2 uc e Write the improper fraction for the mixed number. Write down the integers that the fraction is located between. Then estimate the location of each number on a graph. Round to Round to Mixed Improper the nearest the nearest Sketch of number fraction larger smaller graph integer integer 7. Write the following numbers in order from least to greatest. 5 8 2 3 1 2 3 -2 N -1 1 10 -1 3 4 -2 1 4 pl e: D o ________ < ________ < ________ < ________ < ________ < ________ 8. Here is a list of numbers: 2 3 1 1 2 - 3 4 -1 1 3 -2 1 4 The greatest is _________. The least is _________. Make markings for some relevant integer values on the number line below. m Estimate the location of each number on the number line below. Write the decimal equivalents below each fraction. Sa Rational Numbers Unit (Student Packet) RAT4 – SP19 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line NUMBER LINE A 3 4 - 6 5 -0.8 -0.08 -1.1 ep r 2. Write an inequality statement to show the order of the numbers. 9 -1 10 od - uc e 1. Estimate the location of each number on the number line. ot R _______ _______ _______ _______ _______ _______ N 3. What integers and/or benchmark fractions did you locate on your number line? 3 6 and on the number line. 4 5 pl e: D o 4. Explain how you located - Sa m 5. Explain how you located -0.8 and -0.08 on the number line. Rational Numbers Unit (Student Packet) RAT4 – SP20 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line NUMBER LINE B 2 3 - 5 3 -0.5 - 5 11 -0.53 -0.123 ep r 2. Write an inequality statement to show the order of the numbers. od 1 uc e 1. Estimate the location of each number on the number line. ot R _______ _______ _______ _______ _______ _______ o N 3. What integers and/or benchmark fractions did you locate on your number line? -0.5 and - pl e: D 4. Explain how you located 2 3 and - 5 3 on the number line. Sa m 5. Explain how you located 1 5 on the number line. 11 Rational Numbers Unit (Student Packet) RAT4 – SP21 Rational Number Concepts 4.3 Ordering Rational Numbers on a Number Line NUMBER LINE C 4 5 7 3 -0.4 -0.302 -1.25 3 2 ep r 2. Write an inequality statement to show the order of the numbers. - od 2 uc e 1. Estimate the location of each number on the number line. ot R _______ _______ _______ _______ _______ _______ N 3. What integers and/or benchmark fractions did you locate on your number line? and 3 2 and 7 on the number line. 3 o 4 5 pl e: D 4. Explain how you located 2 -1.25 on the number line. Sa m 5. Explain how you located - Rational Numbers Unit (Student Packet) RAT4 – SP22 Rational Number Concepts 4.4 Fraction and Decimal Games uc e FRACTION AND DECIMAL GAMES Ready (Summary) Set (Goals) We will practice finding fraction and decimal equivalences and ordering fractions and decimals through fraction games. Go (Warmup) ep r od Identify equivalent fractions and decimals. Order fractions and decimals. ot R Write <, =, or > in each blank to make each statement true. 1. 2. 1 2 -3 _____ -3 3 3 5 3 ______ 8 8 4. N 3. 0.333 _______ 0.3 5. pl e: D o 5 2 _____ 8 3 6. 1 101 _____ 2 200 m 7. -2 13 1 _____ -3 4 2 8. 7 1 _____ 8 8 9. Sa - 0.333 _____ 1 3 10. -1.5 _____ -1 Rational Numbers Unit (Student Packet) 3 5 0.1 _______ 0.011 RAT4 – SP23 Rational Number Concepts 4.4 Fraction and Decimal Games ORDER IT! uc e Need: 2 or more players 32 or more Fraction Cards or Decimal Cards ot R Shuffle all the cards and place the cards face down in a pile. To begin, put 5 cards face-up, in the order they are drawn. The first player draws a card from the pile and places it on top of one of the existing face up cards. If all of the cards are now in order from least to greatest, then the player wins. If not, then play continues until all five cards are in order from least to greatest. The next player draws a card from the pile and places it on top of one of the existing face-up cards. If all the cards are now in order from least to greatest, then the player wins. If not, then play continues until all five cards are in order from least to greatest. ep r od The object of this game is to get five numbers in a row, in order, from least value to greatest value. Once a card is placed on the table face up, it may not be moved to another location. However, a new card may be placed on top of it. In order to win, the player must convince the opponent with a reasonable argument that the cards are in order. __________ __________ __________ __________ o __________ N 1. Play two rounds of the Order It! Record one of the ordered card sequences here. Sa m pl e: D 2. Explain why the numbers are in order. Rational Numbers Unit (Student Packet) RAT4 – SP24 Rational Number Concepts 4.4 Fraction and Decimal Games MEMORY AND CHALLENGE GAMES 1. Recall the Fraction Memory Game (see RAT Lesson 1.3), where you matched equivalent uc e fraction number cards to their picture cards. Create a new memory game that matches fraction number cards to their decimal equivalent cards. Play the game with a classmate. Record two sets of cards you matched here. Fraction od Explain why the numbers are equivalent. Decimal Decimal ot R Fraction ep r Explain why the numbers are equivalent. 2. Recall the Fraction Challenge Game (see RAT Lesson 1.3) where you divided a deck of N cards, and then you and your opponent each placed a card from your stack face up. The player with the fraction of higher value wins. Create a new Challenge Game using fraction and decimal cards. Play the game with a classmate. Record two sets of cards where you won here. pl e: D o Who won? ____________ Explain. m me Who won? ____________ Explain. my opponent Sa me my opponent Rational Numbers Unit (Student Packet) RAT4 – SP25 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review FOCUS ON VOCABULARY (RAT4) P N T I D L M C D E C U E N T F R O G A I M G A M A V A M E A M I O A E T R G A I O I F E K A I I N E E R T E E D E T R F R A G F I E N F M C E P N E O A C I E M R E R R N R T T C B N C A N I I P A I I T A I A T M N I M I R I E O O E R O A N C C M C U R F M M M K B R M C M T M I T I I R M N A O R O T P T I I I T H I I R F I G L I E G A M R I O E R O O E O E Word Bank fraction mixed number terminating decimal P R C G T I R I I M A N E K N P I N improper fraction negative fraction Sa m benchmark fraction integer repeating decimal R E N A N M G R R B C A K R V A N A od T I A R E H R T A M N T N C A M K I ep r T M E P C C G I N O E I I D G R I K ot R V C P N I E T O G N N T F O E L T T N E O E R M I R N L D N R R T N X R E o I B R E A O T I M E M T O A E G I L pl e: D E R E R L R R T T F D M I E E G T M uc e Find the words in the word search puzzle. Then, choose five words and write their definitions or give examples. Rational Numbers Unit (Student Packet) RAT4 – SP26 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review SKILL BUILDER 1 uc e Write each number in expanded form. 1. 15.85 _____________________________________________________________ 2. 0.024 _____________________________________________________________ od Write the sum in standard form and in words. 3. 0.4 + 0.03 + 0.001 ___________________________________________________ ep r Order the numbers from least to greatest. 4. 0.06 0.615 0.6 0.66 0.061 5. 0.11 ot R ________ < ________ < ________ < ________ < ________ 0.001 0.1 0.0112 0.01 ________ < ________ < ________ < ________ < ________ 192.45 – 0.19 7. 5.9 + 13.001 8. 47.85 – 4.37 11. 3.7 – 0.55 9. pl e: D o 6. N Compute. 0.113 – 0.02 10. 0.45 + 1.37 m Complete. 12 = = 0. ____ = ____ % 20 100 13. 1 = 2 = 0. ____ = ____ % 3 = 4 15. 3 = 10 = 0. ____ = ____ % Sa 12. 14. = 0. ____ = ____ % Rational Numbers Unit (Student Packet) RAT4 – SP27 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review SKILL BUILDER 2 Use a splitting, replicating or a grouping diagram to show that these fractions are equivalent. 5 10 = 6 12 3. 1 5 = 3 15 ep r od 2. uc e 4 1 = 16 4 1. Write each mixed number as an improper fraction and write each improper fraction as a mixed number. 4 1 5 6. 38 6 9. 13 14 ________ 4 4 N 5. ot R 15 4 4. 5 3 25 ________ 4 5 8. pl e: D 7. o Use <, >, or = to make each statement true. 17 25 ________ 2 3 Sa m 10. Estimate the location of each number on the number line. 1 1 8 Rational Numbers Unit (Student Packet) 1 8 3 7 3 6 1 1 4 RAT4 – SP28 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review SKILL BUILDER 3 1. Write decimal equivalents for each of the following benchmark fractions. 2 8 3. Use the relationship between below. 1 50 b. 4 4 c. 3 8 d. 5 8 1 1 and to find the decimal equivalents for fractions 50 100 3 50 c. 23 50 d. 48 50 pl e: D o a. d. ot R b. N 1 8 3 4 1 1 and to find the decimal equivalents for fractions below. 8 4 2. Use the relationship between a. c. uc e 2 4 od b. ep r 1 4 a. 4. Use the given facts to find the decimal equivalents for the 8 1 8 Fact 2: 8 1 7 8 8 8 Sa m Fact 1: 7 8 fraction = 7 . 8 Show work here: ________ decimal Rational Numbers Unit (Student Packet) RAT4 – SP29 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review SKILL BUILDER 4 Use the symbols <, >, or = to compare. 1 _________ 0.333 3 2. 1 1 _________ 4 3 3. 2 _________ 0.6 3 4. 3 3 _________ 4 3 5. 0.66 _________ 0.6 6. 4 _________ 0.45 5 7. 0.56 _________ 0.5 8. 1 _________ 0.1 8 9. 10. -13 _________ -5 11. -1 _________ -100 12. od uc e 1. ot R ep r 2 _________ 0.5 4 -7 _________ 7 13. Write these numbers from least to greatest. 1 4 1 1 4 -2 1 8 -1 N -1 3 4 -2 1 10 pl e: D o __________ < __________ < __________ < __________ < __________ 14. Estimate the location of each number on the number line. 2 3 - 7 3 -1 9 10 -1.1 -0.5 -0.05 m - Sa 15. Write an inequality statement to show the order of the numbers. _______ < _______ < _______ < _______ < _______ < _______ Rational Numbers Unit (Student Packet) RAT4 – SP30 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review SKILL BUILDER 5 1 5 8 3 -0.405 -2.25 - 4 3 -0.8 od 2 uc e 1. Estimate the location of each number on the number line. ot R ep r 2. Explain how you located -0.405 and -0.8. Use the symbols <, >, or = to compare. 3. 4. 1 1 1 _____ 0.3 _____ 3 6 9 9. N 1 9 10. pl e: D 0.11_____ 7. 0.16 _____ 1 6 1 _____ 0.1666 6 8. 2 1 _____ 18 9 0.333 _____ o 6. 5. 11. 1 2 _____ 6 3 3 9 1 _____ 0.12 9 Sa m 12. Order these numbers from least to greatest. 0.44 4 9 2 3 0.4 0.6 1 6 ________ < ________ < ________ < ________ < ________ < ________ Rational Numbers Unit (Student Packet) RAT4 – SP31 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review TEST PREPARATION (RAT4) 3 ? 8 0.125 B. 0.375 C. 0.38 C. 1 4 D. 1 2 1 3 B. A. < B. D. > 1 8 2 _____ 0.66 true. 3 ot R 3. Choose the symbol that makes the statement ep r 2. What is the fraction equivalent for 0.125? A. 0.625 od 1. What is the decimal equivalent for A. uc e Show your work on a separate sheet of paper and choose the best answer. C. = D. N 4. Place the numbers listed below in order from least to greatest. - 2 3 -2 o -0.06 2 3 - 7 3 -2.66 B. -2.66 , - 7 2 2 , -2 , -0.06 , 3 3 3 7 2 , -2.66 , - , -0.06 3 3 D. -0.06 , - 2 7 2 , - , -2.66 , -2 3 3 3 pl e: D 2 7 2 , -2.66 , - , - , -0.06 3 3 3 A. -2 C. -2.66 , - Sa m 5. Which number does F represent on the number line? A. 7 16 F G H 0 B. Rational Numbers Unit (Student Packet) 7 8 C. - 7 8 D. - 7 16 RAT4 – SP32 Rational Number Concepts 4.5 Vocabulary, Skill Builder, and Review KNOWLEDGE CHECK (RAT4) 1. What is the decimal equivalent for HINT: 8 1 7 8 8 8 7 ? 8 What is the fraction equivalent for 0.18? 4.2 Repeating Decimals 3. Order the following from least to greatest. 0.61 2 3 0.33 N 1 3 ot R 2. od Terminating Fractions ep r 4.1 uc e Show your work on a separate sheet of paper and write your answers on this page. 0.3 0.6 4.3 2 or 0.60? Explain. 3 Ordering Rational Numbers on a Number Line Estimate the location of each number on the number line. -0.5 -0.05 - 5 11 - 5 4 1 1 4 -1.30 Sa m 5. Which is greater, pl e: D 4. o ________ < ________ < ________ < ________ < ________ < ________ Rational Numbers Unit (Student Packet) RAT4 – SP33 Rational Number Concepts Home-School Connection (RAT4) 1. Find the decimal equivalent for 13 . 25 3. Which is greater, -2.32 or -2.3? Explain. od 1 = 0.3 = 0.33 = 0.333 . Is he correct? Explain. 3 ep r 2. Jorge says that uc e Here are some questions to review with your young mathematician. ot R Parent (or Guardian) signature ____________________________ Selected California Mathematics Content Standards NS 6.1.1 pl e: D NS 7.1.3 N NS 5.2.1 Interpret percents as part of a hundred; find decimal and percent equivalents for common fractions and explain why they represent the same value; compute a given percent of a whole number. Add, subtract, multiply, and divide with decimals; add with negative integers; subtract positive integers from negative integers; and verify the reasonableness of results. Compare and order positive and negative fractions, decimals, and mixed numbers and place them on a number line. Convert fractions to decimals and percents and use these representations in estimations, computations, and applications. Know that every rational number is either a terminating or a repeating decimal and be able to convert terminating decimals into reduced fractions. o NS 5.1.2 NS7.1.5 DO NOT DUPLICATE © 2010 Sa m FIRST PRINTING Rational Numbers Unit (Student Packet) RAT4 – SP34
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