Multiplying by Multiples of 10

A

100

2 X 10

20

200

5 X 200

1000

300

30 X 30

900

400

20 X 40

800

500

60 X 80

4800

B

100

30 X 10

300

200

6 X 20

120

300

400 X 3

1200

400

30 X 40

1200

500

7 X 8000

56000

C

100

4 X 10

40

200

7 X 200

1400

300

50 X 30

1500

400

4 X 40

160

500

700 X 70

49000

D

100

5 X 10

50

200

8 X 20

160

300

6 X 30

180

400

500 X 40

20000

500

900 X 900

810000

E

100

600 X 10

6000

200

9 X 200

1800

300

7 X 30

210

400

60 X 40

2400

500

70 X 90

6300