Add Decimals
Subtract Decimals
Powers of 10
Multiply Double Digits
Rounding Decimals
100

 Lisa bought a shirt for $15.75 and a pair of jeans for $42.89. How much did she spend in total?

 $58.64

100

8.75 - 3.62

5.13

100

45 × 10⁴

450,000

100

34 × 56

1,904

100

Round 3.786 to the nearest tenth

3.8

200

A car fills up with 10.5 gallons of gas, costing $3.89 per gallon. What is the total cost?

$40.95

200

14.9 - 6.4

8.5

200

68 × 10⁶

68,000,000


200

45 x 23

1,035

200

Round 5.431 to the nearest hundredth

5.43

300

Tom spent $8.32 on breakfast and $12.56 on lunch. What was his total spending?

 $20.88

300

56.8 - 28.95

27.85

300

34 × 10²

3400

300

67 × 42

2,814

300

Round 12.567 to the nearest hundredth

12.57

400

Emma has $45.75 in her savings account and adds $23.50. How much does she have now?

$69.25

400

Alex had $250.75 in his savings account. After a withdrawal of $68.40, how much money is left in his account?

$182.35

400

548 × 10⁶

548,000,000

400

88 × 76

6,688

400

Round 9.1234 to the nearest thousandth

9.123

500

 A runner runs 5.6 miles in the morning and 7.9 miles in the afternoon. How many miles did she run in total?

13.5 miles

500

A car has 40.5 gallons of fuel. After driving a long distance, it has 12.8 gallons left. How many gallons of fuel did it use?

27.7 gallons

500

30 x 103

30,000

500

96 × 87

8,352

500

Round 7.829 to the nearest whole number

8

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