Adding and Subtracting Decimals

Basic Add

100

4.4+7.6

What is 12

200

14.6+20.5

What is 35.1

300

35.7+52.4

What is 88.1

400

89.7+63.8

What is 153.5

500

140.7+56.8

What is 197.5

Basic Subtract

100

6.3-2.7

What is 3.6

200

7.7-3.6

What is 4.1

300

4-3.4

What is 0.6

400

68.9-62.5

What is 6.4

500

80.4-11.7

What is 68.7

Mixed

100

6.7+9.3?

What is 16.0?

200

16.7 - 12.1

What is 4.6?

300

24.1 + 23.7

What is 47.8?

400

54.5 - 13.3?

What is 41.2?

500

204.2 + 31.7

What is 235.9?

Word Problems

100

On Monday, the temperature was 24.3 °C. On Tuesday, the temperature was 19.5 °C. How much warmer was it on Monday compared to Tuesday?

What is 4.8 degrees?

200

There are two containers of butter. The blue container has 10.6 oz butter, and the green container has 9.9 oz butter. How much butter is there all together?

What is 20.5 oz?

300

A restaurant orders 109.2 lb of rice. In one week, they use 78.2 lb of rice. How much rice do they have remaining?

What is 31 pounds

400

At the fall fair, there is a giant pumpkin contest. One pumpkin weights 45.9 lb. Another pumpkin weighs 54.2 lb. How much do the pumpkins weigh in total?

What is 100.1 pounds?

500

Erin scores 229.2 on a big final exam. She knows she lost 20.8 marks. How much was the exam out of in total?

What is 250 marks