Calculation
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Rounding Decimals
Simplified Calculation
Word Problems
100

21.3+4.9=

Answer: 26.2

100

5.7____ 0.57

Answer: greater than

100

250÷100

Answer: 2.5

100

3.2 + 4.15 + 0.8

Answer: 8.15

100

A pencil costs $1.2, an eraser costs $0.5. How much for both?

Answer: $1.7

200

28.3 - 4.7 =  

Answer: 23.6

200

0.25 ____0.61

Answer: smaller than

200

0.036 × 100 =

 Answer: 3.6

200

9.6 - 2.3 - 1.7

Answer: 5.6

200

You pay $10 for a toy of $7.4, how much change do you get?  

Answer: $2.6

300

0.78+0.88=

Answer: 1.66

300

2.7____ 2.70

Answer: equal to

300

Round to whole number: 9.962≈

 Answer: 10

300

4.86+5.24-1.86+3.76

12
300

A bottle of juice is 2.5L, drink 0.8L, how much left?

 Answer: 1.7L

400

3−0.23

Answer: 2.77

400

4.09 ____ 4.90

Answer: smaller than

400

Round to tenths place: 10.866≈

Answer: 10.9

400

5.03−0.25−1.75

Answer: 3.03

400

Pen $6.3 + Cup $15.25 + Apple $6.75, total cost?  

Answer: $28.3

500

10 - 3.68 =

Answer: 6.32

500

0.805 ____ 0.850  

Answer: smaller than

500

Round to hundredths place: 1.873≈

Answer: 1.87

500

把 2.32 亿改写成以“万”为 单位的数是

23200万

500

Cici bought an exercise book. She gave the cashier $20.00 and received a change of $2.55. What was the cost of 1 exercise book?  

Answer: $17.45