Math Focus 5 Review
Learning Goal (NBT.A.1-4 and NBT.B.5-7)
Students with be able to understand the place value
system and perform operations with multi-digit
whole numbers and with decimals to hundredths.
Homework:
Complete this study guide and review all of the concepts.
Objectives
• I can use exponents to show powers of 10.
• I can multiply and divide decimals by a power of 10.
• I can read, write, and compare decimals to
thousandths.
• I can round decimals to any place.
• I can add, subtract, multiply, and divide decimals to
hundredths.
I can use exponents to show powers of 10.
Directions: Identify the proper power of 10 for each
number.
100 = _______
1,000 = _______
1,000,000 = _______
100,000 = _______
10 = _______
10,000 = _______
I can multiply and divide decimals by a power of 10.
Directions: Solve the following problems. Show your work.
246 x 103 = _____________
5
4.863 x 10 = ____________
5.3 ÷ 102 = ______________
3
87.32 ÷ 10 = ____________
Directions: Complete the patterns.
1. Decide are the numbers in the pattern getting larger (multiply) or
smaller (divide)?
2. Decide by what power of 10 the numbers are being multiplied or
divided.
3. Complete the pattern.
.006
.06
_____
______
9,840 ______
6
98.4
60 _____
9.84
6,000
______
Directions: Solve the following problems. Show your work.
Please be sure to include an equation with the power of tens.
742 cm = _________m
___________________
4.576 m = _________mm
___________________
.835 m = ________cm
___________________
3.8 cm = _______ mm
__________________________
KHDUDCM
mall
Bestig -> Soccer
= Mmultiply
oms
mall
ig
ivide
Silly -> Babies = Dancing
I can read, write, and compare decimals to
thousandths.
Directions: Write the following decimals in word form.
8.7
________________________________________
4.008
________________________________________
Directions: Write the decimals in expanded form using
decimals or fractions.
2.49 ___________________________________________
69.24 __________________________________________
Directions: Put the following numbers in increasing order.
134.57
133.261
132.005
132.054
_______________________________________
Directions: Compare the following decimals using <, >, or =.
3.9
19.556
39 tenths
19.557
seven hundred and one tenth
7.014
700.01
seven and 14 hundredths
I can round decimals to any place.
Directions: Round the decimal to the underlined digit.
6.267
__________
35.23
__________
63.405
__________
6.713
__________
2.829
__________
23.912
__________
I can add decimals to hundredths.
Directions: Solve using the strategy of your choice. Be sure to
show you work.
12.89 + 4.35 = _____
23.24 + 13.15 = _____
I can subtract decimals to hundredths.
Directions: Solve using the strategy of your choice. Be sure to
show you work.
23.04 – 11.15 = _____
15.7 – 4.2 = _____
I can multiply decimals to hundredths.
Directions: Solve using the strategy of your choice. Be sure
to show you work.
25.762 x 5 = _____
13.25 x 3 = ______
I can divide decimals to hundredths.
Directions: Solve using the strategy of your choice. Be sure
to show you work.
30.65 ÷ 5 = _______
12.4 ÷ 2 = _______
Directions: Solve and explain.
After a lesson on exponents, Gianna went home and
said to her mom, “I learned that 103 is the same as
300.” She has made a mistake in her thinking. Use
words, numbers, or a place value chart to help Gianna
correct her mistake.
Directions: Solve and explain.
Cole measured his hand. It was 0.18 meter. Ross
measured his hand, it was 0.164 meter. Whose hand is
larger, and how much larger is it?
Directions: Solve and explain.
A cook is making vegetable soup for a family gathering. One
recipe of soup calls for 0.957 lbs. of potatoes, 1.03 lbs. of
carrots, and 0.216 lbs. of beef. He has to make 8 recipes of
vegetable soup for the gathering. How many total pounds
of each ingredient will he need to make all of the recipes?
Answer:
Potatoes __________
Carrots ___________
Beef _____________
Directions: Solve and explain.
Mrs. DiCosmo and her family were going to go to the
movies. Mrs. DiCosmo paid $10.75 total for her and
her husband. Each of her two daughters paid $18.34
for their families. Her son’s family had to pay double
what Mrs. DiCosmo paid. How much was it for Mrs.
DiCosmo’s entire family to go to the movies?
Directions: Solve and explain.
A carpenter was making shelves for the library. The
shelves were going to take 8 days to install. He installs
12.5 meters each day to finish the job at the end of the
8 days. How many total centimeters is the carpenter
going to install at the end of the 8 days?
Directions: Solve and explain.
Tagger mixed together 8.14 lbs. of carrot sticks and
6.28 lbs. of celery sticks. After filling up 2 bags that
were the same size with the mixture, he had .42 lb.
left. What was the weight of each bag?