Subtract!
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
345,134 + 56,134 =
What is 401,268
MENTAL MATH
50 x 2 =
100
Mental Math
42 divided into 6 groups
What is 7
What does the word "of," in math usually mean.
What is multiply or multiplication
Mental Math
20-10
What is 10
MENTAL MATH
37 + 70 =
What is 107
MENTAL MATH
2 x 12
24
24/4
What is 6
What does "sum," mean
Answer to an addition problem
642-318
What is 324
MENTAL MATH
300 - 189=
What is = 111
Mental Math
12 x 7 =
MENTAL MATH
45 divided into 9 groups
What is 5
If a word problem asks you "how much more/less" you should use this operation
Subtraction
562-191
What is 371
MENTAL MATH
155 + 245 = ?
400
45 x 8 =
What is 360
MENTAL MATH
100 divided into 4 groups
What is 25
What do you call the numbers 4 and 7 in the problem 4 x 7 = 28
factors
Mental Math
60 - 31 =
What is 29
MENTAL MATH
98 + 499 =
What is 597
76 x 5 = ?
380
MENTAL MATH
40 divided into 5 groups
What is 8
What is the word "difference," refer to in math?
Subtraction