Powers of 10
Multiples of 10
2 by 1
2 by 2
True or False
100

20 x 100

2,000

100

20 x 20 

400

100

15 x 2

30

100

14 x 12

168

100

Repeated addition is also called multiplication.

True

200

55 x 1000

55,000

200

30 x 200

6,000

200

22 x 7

154

200

30 x 28

840

200

8 x 5 = 10 x 4

True

300

97 x 10 000

970,000

300

90 x 200

18,000

300

51 x 3

153

300

52 x 21

624

300

42 x 53 is the same as (40 + 2) x ( 50 + 3) 

True

400

135 x 1000

135,000

400

300 x 300 

90,000

400

49 x 5

245

400

36 x 49

1,764

400

236 x 43 is the same as 124(53 x 38)

 

False


500

674 x 10, 000

6,740,000

500

400 x 500

200,000

500

78 x 6

468

500

63 x 85

5,355

500

Arrays are useful representations of multiplication concepts. 

True

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