Mental Math
Add/Sub
Subtracting Decimals
Adding Decimals
100

0.2 + 0.6

What is 0.8

100

9.001 - 3

What is 6.001

100

Subtracts the Decimals 

1.5 - 0.5

What is 1

100

Add the decimals 

0.5 + 0.5

What is 1

200

 4.8 + 0.1

What is 4.9

200

11.25 - 9.25

What is 2

200

Subtract the Decimals 

80.0 - 8.7

What is 71.3

200

Add the decimals 

0.724 + 6.458

What is 7.182

300

2.03 - 0.03

What is 2

300

25.7 - 24.1

What is 1.6

300

Subtract the Decimals 

2.00 - 0.32

What is 1.68

300

Add the Decimals 

1.325 + 0.081

What is 1.406

400

5.22 + 0.28

What is 5.5

400

14.33 + 9.4

What is 23.73

400

Subtract the decimals 

18.93 - 11.36

What is 7.57

400

Add the Decimals 

23.8 + 8.52

What is 32.02

500

12 - 7.5

What is 4.5

500

2.6 + 6.26

What is 8.86

500

Subtract the decimals 

48.4 - 31.48

What is 16.92

500

Add the Decimals 

9.58 + 9.42

What is 19

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