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Challenge
Tricks!
Anything times ten...
Commutative Property
Count by 5's
100

7 x 6 =

42

100

9 x 5 =

45

100

10 x 3 =

30

100

8 x 7 = 56

7 x 8 = _____

56

100

____ x 5 = 45

9

200

7 x 8 =

56

200

8 x 8 = 

64

200

10 x 7 =

70

200

9 x 7 = 63

7 x __= 63

9

200

_____ x 5 = 20

4

300

7 x 4  = 

28

300

11 x 7 =

77

300

10 x 8 =

80

300

10 x 7 = 70

____ x 10 = 70

7

300

_____ x 5 = 35

7

400

11 x 12 = 

132

400

6 x 9 = 

54

400

11 x 10=

110
400

8 x 11 = 88

11 x ____ = 88

8

400

____ x 12 = 120

10

500

12 x 12 =

144

500

7 x 7 = 

49
500

12 x 10 

120

500

11 x 12 =132

___ x 11 = 132

12

500

____ x 5 = 60

12