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Vocabulary
1000

Mental Math

7 x 7 = ?

What is 49

1000

Mental Math

Fiona wants to buy a phone charger worth \$42, but she only has a \$50 bill How much change will she receive?

What is \$8

1000

23+34

What is 57

1000

MENTAL MATH

50 x 2 =

100

1000

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

What is multiply or multiplication

1006

Mental Math

30+30

What is 60

1006

Mental Math

20-10

What is 10

1006

MENTAL MATH

37 + 70 =

What is 107

1006

MENTAL MATH

2 x 12

24

1006

What does "sum," mean

Answer to an addition problem

2000

Mental Math

3x3x3

What is 27

2000

642-318

What is 324

2000

MENTAL MATH

300 - 189=

What is  = 111

2000

Mental Math

12 x 7 =

84
2000

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

Subtraction

2000

9 x 2

18

2000

562-131

What is 431

2000

MENTAL MATH

155 + 245 = ?

400

2000

45 x 8 =

What is 360

2000

What do you call the numbers 4 and 7 in the problem 4 x 7 = 28

factors

3000

Mental Math

60 divided by 3=

What is 20

3000

Mental Math

60 - 31 =

What is 29

3000

MENTAL MATH

98 + 499 =

What is 597

3000

76 x 5 = ?

380

3000

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

Subtraction

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