Decimal Review

Adding Decimals

100

Add the decimals:   

8.10  +  9.10

17.20

200

Add the decimals:  

2.80  +  0.13

2.93

300

Add the decimals: 

0.041 + 9.300

9.341

400

Add the decimals:  

3.546 + 8.514

12.060

500

Add the decimals: 

7.290 + 6.586

13.876

Subtracting Decimals

100

Subtract the decimals:   

8.5 - 7.4

1.1

200

Subtract the decimals:  

9.8 - 2.6

7.2

300

Subtract the decimals:  

5.80 - 0.76

5.04

400

Subtract the decimals:

0.760 - 0.068

0.692

500

Subtract the decimals:

0.390 - 0.097

0.293

Word Problem

100

Emma bought a sandwich for $3.75, a juice for $2.45, and a cookie for $1.25. How much did she spend in total?

3.75 + 2.45 + 1.25 = $7.45

200

A car traveled 125.6 km on Monday and 98.75 km on Tuesday. How many kilometers did the car travel altogether?

125.6 + 98.75 = 224.35 km

300

A runner completed 4.35 km in the first lap, 3.8 km in the second lap, and then rested for a while. Later, she ran another 2.25 km. What is the total distance she ran?

4.35 + 3.8 + 2.25 = 10.4 km

400

Mira had $50.00. She spent $12.45 on lunch and $8.75 on books. How much money does she have left?

50.00 − (12.45 + 8.75) 

= 50.00 − 21.20 

= $28.80

500

A baker made 12.5 kg of dough in the morning and 9.75 kg in the afternoon. He used 18.2 kg of dough to bake bread. How much dough is left?

(12.5 + 9.75) − 18.2 

= 22.25 − 18.2 

= 4.05 kg

Wild Decimals

100

Add the decimals:

0.55 + 0.61

1.16

200

Subtract the decimals:

6.800 - 0.910

5.890

300

Add the decimals:

6.94 + 0.816

7.756

400

Subtract the decimals:

112.2 - 17.89

94.31

500

Divide the decimals:

10.001 - 2.01

7.991