Multiplying and Division Review

Whole Numbers

100

98 ÷ 14

7

200

276 ÷ 23

12

300

38 ÷ 6

6 2/6

400

594 ÷ 14

42 6/14

500

423 ÷ 17

24 15/17

Multiply by Powers of 10

100

5 x 10²

500

200

25 x 10³

25,000

300

2.63 x 10³

2,630

400

4.2 x 10²

420

500

0.109 x 10⁵

10,900

Divide by Powers of 10

100

500 ÷ 10²

5

200

83 ÷ 10²

0.83

300

1,352 ÷ 10³

1.352

400

4.3 ÷ 10³

0.0043

500

947.2 ÷ 100

9.472

Surprise

100

If you multiply by 10³, how many places do you move the decimal and in which direction (left or right)?

3 spaces to the right

200

3.96 x 10²

396

300

6.03 x 10³

6,030

400

92 ÷ 16 

5 3/4

500

3,601 ÷ 10³

3.601

Decimals

100

8.16 ÷ 4

2.04

200

19.25 ÷ 5

3.85

300

1.2 ÷ 0.3

4

400

4.41 ÷ 0.63

7

500

21.92 ÷ 2.74

8