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Add!
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Divide!
Vocabulary
Find x
200

Mental Math

30+30 + 40 =

100

200

Mental Math

222-123

99

200

MENTAL MATH

37 + 70 = 

107

200

MENTAL MATH 

4 x 12

48

200

64/4

16

200

What does "sum," mean

Answer to an addition problem

200

3x = 6

400

Mental Math

60 divided by ____ = 5

12
400

Mental Math

60 - 31 = 

29

400

MENTAL MATH

98 + 99 = 

197

400

Mental Math

12 x 7 = 

84

400

MENTAL MATH

80 divided into 5 groups

16
400

What is the word "difference," refer to in math?

Subtraction

400

What is 50% of 60

30

600

Mental Math

3x3x3

27

600

42-18

24

600

MENTAL MATH

30 + __ = 131

101

600

Mental Math

12 x 11 =

132

600

MENTAL MATH 

45 divided into 9 groups 

5

600

If a word problem asks you "how much more/less" you should use this operation

Subtraction

600

2x+3x=15

3
800

Mental Math

9 x 12 = ?


108

800

Mental Math

Shane's mom said to take a break after lunch at 12:25 p.m. His break was over at 1:10 p.m. How long was his break?

45 minutes

800

143 + 134 = 

9

800

MENTAL MATH

55 x 3 = 

165

800

Mental Math

72 divided into 6 groups

12
800

What does the word "of," in math usually mean.

multiply or multiplication

800

4 + 2x = 6

1

1000

93

729

1000

562-572

-10

1000

MENTAL MATH

155 + 245 = ? 

400

1000

Mental Math

50 x 8 =

400

1000

MENTAL MATH

125 divided into 5 groups

25

1000

What is the opposite of cubing a number?

cube root

1000

5x = 4x

0