MULTIPLYING & DIVIDING by 10, 100 and 1,000

Multiplying by 10, 100 and 1,000

100

12 x 10 = 

120

200

15 x 100 = 

1,500

300

250 x 100 = 

25,000

400

3,210 x 1,000 = 

3,210,000

500

321,000 x 10,000 = 

3,210,000,000

Multiplying DECIMALS by 10, 100 and 1,000

100

1.2 x 10 = 

12

200

.12 x 10 =

1.2

OR

1.20

300

.345 x 100 = 

34.5

400

.0456 x 1,000 = 

45.6

500

5.6789 x 10,000 = 

56,789

Dividing by 10, 100 and 1,000

100

120 ÷ 10 = 

12

200

150 ÷ 10 = 

15

300

2,500 ÷ 100 = 

25

400

321,000 ÷ 100 = 

3,210

500

321,000,000 ÷ 1,000 = 

321,000

Dividing DECIMALS by 10, 100, and 1,000

100

12.0 ÷ 10 = 

1.2

200

1.5 ÷ 10 = 

.15

OR

0.15

OR

0.150

300

25.5 ÷ 100 = 

.255

OR

0.255

OR

0.2550

400

321.1 ÷ 1,000 = 

.3211

OR

0.3211

OR 

0.321100

500

32.1 ÷ 10,000 = 

.00321

OR

0.00321

OR

.0032100

BONUS: DOUBLE POINTS

100

123 x 10 = 

1,230

200

12,300 ÷ 10 = 

1,230

300

.1230 x 100 = 

12.3

OR

12.30

400

.1230 ÷ 100 = 

.00123

OR

0.00123

OR

0.001230

500

.001234 ÷ 100  = 

.00001234

OR

0.00001234

OR

.0000123400