Decimal Review

Adding Decimals

100

2.3 + 4.5

6.8

200

5.8 + 3.7

9.5

300

12.4 + 3.25

15.65

400

Maya is buying groceries for a party. At the first store, she spent $47.86. She then spent $66.52 at the second store. How much money did she spend in all?

$114.38

500

Mrs. Davis is making a liquid mixture in science. She mixes 18.907 mL of red dye, with 104.38 mL of blue dye, with 0.0965 mL of green dye. How many mL will she have in all at the end?

123.3835 mL

Subtracting Decimals

100

8.7 - 3.2

5.5

200

9.2 - 4.08

5.12

300

15.6 - 4.25

11.35

400

Alex had a gift card worth $50.04. He spent $18.38 of it on Roblox. How much money is left on the card?

$31.66

500

Talia was timing herself to see how fast she can swim from one end of her pool to the other. Her first time was 28.095 seconds. Her second time was 21.48 seconds. How much faster was her second try from her first try?

6.615 seconds

Multiplying Decimals

100

1.4 x 3

4.2

200

1.2 x 0.6

0.72

300

3.15 x 0.07

0.2205

400

Jacob buys 3.5 pounds of apples at $2.48 per pound. How much did Jacob spend on apples?

$8.68

500

CMS is selling slime for a fundraiser. To make slime, each batch needs 0.74 liters of glue. If the school is making 12.5 batches, how many liters will they need?

9.250 liters (or 9.25 liters)

Random

100

What place value is the 9 in? 12.5692

Thousandths

200

Write this in word form: 0.12 + 0.5

12 hundredths + 5 tenths

300

123.456 + 32.87 - 84.321

72.005

400

Solve: 1.9²

3.61

500

Solve: 3(5.8 + 2.24)

24.12