Adding and Subtracting Decimals

Rounding

100

2.08 + 1.37 to the nearest whole number

What is 2 + 1=3?

200

5.076 - 1.65 to the nearest whole number

What is 5 - 2=3?

300

7.98 + 5.76 to the nearest whole number

What is 8 + 6=14?

400

9.021 + 4.99 to the nearest whole number

What is 9 + 5=14?

500

18.23 - 2.8762 to the nearest whole number

What is 18 - 3=15?

Benchmarking

100

5.07 + 4.253 

What is 5.00 + 4.25= 10.25? 

200

8.74 - 2.48

What is 8.75-2.50= 6.25?

300

6.803 + 4.32

What is 6.75 + 4.25= 11.00

400

4.61 - 2.976

What is 4.50 - 3.00= 1.50?

500

7.634 - 5.21

What is 7.75 - 5.25= 2.50?

Adding

100

3.21 + 3.47

What is 6.68?

200

6.23 + 4.98

What is 11.21?

300

5.3 + 2.68

What is 7.98?

400

3.78 + 4.901

What is 8.681?

500

6.982 + 7.15

What is 14.132? 

Subtracting

100

7.2 - 3.9

What is 3.3?

200

2.45 - 1.9

What is 0.55?

300

7.34 - 5.92

What is 1.42?

400

8.04 - 6.76

What is 1.28?

500

9.46 - 1.902

What is 7.558?