4th grade Math Review Second Semester School Year 2016-2017 Order of Operations Division Factors and Multiples Fraction equivalence Fraction in Simplest Form Fractions Addition and Subtraction Geometry: Lines, Rays and Line Segments Quadrilaterals Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 1 1. Order of operations. 3 x 64 + 2 x 16 – 78 = 5 x 17 + 5 x 20 – 32 = 3 x 22 + 7 x 41 – 24 = 4 x 34 + 6 x 40 – 66 = 6 x 13 + 9 x 34 – 22 = 2. Find the quotient and remainder. 39 ÷ 8 = _________ 24 ÷ 7 = _________ 25 ÷ 9 = _________ 17 ÷ 3 = _________ 27 ÷ 8 = _________ 11 ÷ 5= _________ 10 ÷ 3 = _________ 25 ÷3 = _________ 20 ÷7 = _________ 23 ÷8 = _________ Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 2 3. Divide tens, hundreds and thousands. 240 ÷ 6 = __________ 18 ÷ 3 = _________ 4,500 ÷ 9 = __________ 180 ÷3 = _________ 150 ÷ 3 = ___________ 1,800 ÷3 = _________ 2,000 ÷ 5 = ___________ 18,000 ÷3 = ________ 6,400 ÷ 8 = ___________ 560 ÷7 = __________ 4. Divide and Check. 2 6 7,345 2,456 4 636 3 5,257 Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda 8 906 7 8,473 Page 3 5. Factors and divisibility: Is 6 a factor of the number? Write yes or no. 1. 2. 3. 4. 36 ______ 56 ______ 42 ______ 66 ______ Is 5 a factor of the number? Write yes or no. 1. 2. 3. 4. 38 ______ 45 ______ 60 ______ 39 ______ 1. 2. 3. 4. Is 9 a factor of the number? Write yes or no. 54 _______ 63 _______ 67 _______ 93 _______ List all the factors for each term. Factors of 12 ____________________________________ Factors of 16 ____________________________________ Factors of 24 _____________________________________ Factors of 36 _____________________________________ Factors of 72 _____________________________________ Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 4 List the common factors of the numbers. 9 and 18 20 and 50 ________________ __________________ 24 and 30 ____________________ 6. Factors and multiples. * Multiply to list the next 5 multiples of 3 3, _____, _____, _____, _____, _____ *Multiply to list the next 5 multiples of 6 6, _____, _____, _____, _____, _____ *Multiply to list the next 7 multiples of 8 8, _____, _____, _____, _____, _____, _____, _____ *Multiply to list the next 7 multiples of 12 12, _____, _____, _____, _____, _____, _____, _____ *Tell whether 20 is a factor or a multiple of the number. Write factor, multiple, or neither. 5 ____________ 10 ______________ 20 ____________ 30 ____________ 60 ____________ *List the next nine multiples of each number. Find the common multiples. Multiples of 2: 2, __________________________________________________________ Multiples of 8: 8 ___________________________________________________________ Common multiples _________________________________________________________ Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 5 Number Patterns. 1. Use the rule to find the first 12 numbers in the pattern. Rule: add 8 First term: 5 5, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____ Rule: subtract 7 First term: 95 95, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____ Rule: add 15, subtract 10 First term: 4 4, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____, _____ Tell whether the number is prime or composite. 47 _______________ 68 _______________ 52 _______________ 49 _______________ 25 _______________ 59 _______________ 31 _______________ 75 _______________ Write true or false. 1. Only odd numbers are prime numbers. _______________ 2. A composite number cannot have three factors. _______________ Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 6 7. Write two equivalent fractions for each. 𝟏 _______________________________ 𝟑 𝟒 𝟔 ________________________________ 𝟗 𝟏𝟎 𝟏 𝟐 𝟓 𝟕 𝟑 𝟒 _______________________________ ________________________________ ________________________________ ________________________________ 8. Tell whether the fractions are equivalent. Write = or ≠. 𝟏 𝟑 𝟒 𝟓 𝟓 𝟏𝟎 𝟒 𝟏𝟐 𝟓 𝟏𝟎 𝟔 𝟏𝟐 𝟑 𝟒 𝟐 𝟒 𝟔 𝟓 𝟒 𝟗 𝟓 𝟏𝟎 𝟏𝟐 𝟖 𝟒 𝟖 𝟐 𝟖 𝟏𝟐 𝟐𝟒 𝟏𝟎 𝟐𝟎 𝟔 𝟐𝟒 𝟐𝟎 𝟑𝟎 Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 7 9. Write the fraction in simplest form. Example 𝟔 ÷𝟐 𝟏𝟎 ÷𝟐 𝟔 𝟏𝟎 6 _______________________ 12 10 4 10 4 2 ________________________ 6 ________________________ 8 8 𝟑 =𝟓 ________________________ 7 21 ________________________ 2 12 20 100 9 12 4 10 _______________________________ ________________________________ ________________________________ ________________________________ ________________________________ 10. Find Common Denominators and them compare the fractions. Example: 𝟐 𝟑 and 𝟑 𝟒 Think: Find a common multiple: 3: 3, 9, 12, 15 4: 4, 8, 12, 16, 20 The answer is: 𝟖 𝟗 , 𝟏𝟐 𝟏𝟐 𝟏 𝟒 and 𝟐 𝟏 𝟑 𝟐 Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda and 𝟏 𝟏 𝟑 𝟒 and 𝟓 𝟔 Page 8 𝟐 𝟐 𝟓 𝟒 and and 𝟐 𝟒 𝟑 𝟓 𝟕 𝟑 𝟖 𝟏𝟎 and 𝟕 𝟏 𝟏𝟎 𝟒 and and 𝟏 𝟐 𝟐 𝟑 𝟏 𝟔 and 𝟑 𝟒 11. Add and subtract fractions. 𝟗 + 𝟏𝟐 𝟐 𝟑 𝟓 𝟔 𝟓 𝟔 + 𝟐 - 𝟐 - 𝟏 𝟔 𝟓 𝟔 𝟕 𝟏𝟐 = _____________ = _____________ = _____________ = _____________ Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda 𝟐 𝟑 + 𝟏 - 𝟒 𝟕 𝟖 𝟏 𝟏𝟎 𝟒 𝟏𝟓 𝟑 = _____________ = _____________ 𝟖 + + 𝟏 𝟏𝟎 𝟏 𝟓 = _____________ = _____________ Page 9 12. Problem Solving. 1. Kenny bought 20 packs of baseball cards. There are 12 cards in each pack. How many cards did Kenny buy? 2. The Heart family drove 10 hours to their vacation spot. They drove an average of 48 miles each hour. How many miles did they drive in all? 3. Teacher has 27 students in her class. She asks the students to form as many groups of 4 as possible. How many students will not be in a group? 4. Johan has 70 beads. She uses 8 beads for each bracelet. She makes as many bracelets as possible. How many beads will Johana have left over? 5. Manuel buys a pizza and shares it with his best friend Bruce. Manuel eats 3/12 and Bruce eats 4/12. How many pieces did they eat all together? 6. At Memorial Hospital, 9 of the 12 babies born on Tuesday were boys. In simplest form, what fraction of the babies born were boys? Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 10 7. Bryson buys a bag of 64 plastic miniature dinosaurs. Could he distribute them equally into storage containers and not have any left over? 8. Maria, Karla, Ana, and Amanda collected 13 marbles. They want to share the marbles equally. How many marbles will each of the 4 girls get? How many marbles are left over? Frank used a model to solve this problem. Is his model correct? Explain. 9. A recipe for a vegetable dish contains a total of 924 calories. The dish serves 6 people. How many calories are in each serving? 10. To win a game, Roger needs to score 2,000 points. So far, he has scored 837 points. How many more points does Roger need to score? Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 11 Geometry 1. Lines, Rays and Arrays. Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 12 3. Classify Quadrilaterals. Use the quadrilateral Color guide to color the quadrilaterals. Red Exactly 4 right angles Blue Exactly 2 right angles Orange Exactly one right angle Match 1. Rhombus 2. square 3. trapezoid 4. rectangle 5. parallelogram Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 13 Fourth Grade Second Semester Reviews T. Giny, T. Vanessa, and T. Brenda Page 14
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