Multiplication review

Vocab

10

Multiplication shown with rows and columns is called ______.

Array 

20

The numbers you multiply are called _______

Factors

30

The answer to a multiplication problem is called ______

Product 

40

The inverse of multiplication is _________

Division 

50

When measurement the _______ of a room you multiply length times width.

Area

Rules

10

Any number times __ will always be 0

0

20

Any number time __ is itself 

1

30

Any number times __ will always be even

2

40

Any number times __ will have a 0 or 5 in the ones place 

5

50

Any number times __ will shift the digits up one place value and have a 0 in the one's place 

10

Factors 1-5

10

7×3

21

20

4×5

20

30

9×2

18

40

4×8

32

50

4×4

16

Factors 6-12

10

6×6

36

20

8×7

56

30

11×8

88

40

9×9

81

50

12×5

60

Double digit

10

23×2

46

20

51×3

153

30

17×7

119

40

49×8

392

50

3,000,000×3

9,00,000