Say What?
50+50 + 80 =
180
222-123
99
MENTAL MATH
39 + 70 =
109
MENTAL MATH
4 x 1o
40
What does "sum," mean
Answer to an addition problem
2 x 3
6
5629-3405
2,224
MENTAL MATH
155 + 245 = ?
400
Mental Math
5 x 8 =
40
What is takeaway?
subtract
Mental Math
6 divided by ____ = 3
2
Mental Math
60 - 31 =
29
MENTAL MATH
99 + 99 =
198
Mental Math
3 x 7 =
27
What is the word "difference," refer to in math?
Subtraction
2x2x2
8
42-18
24
80 + __ = 131
51
8 x 11 =
88
If a word problem asks you "how much less" you should use this operation
Subtraction
10 x 2 = ?
20
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
143 + 134 =
277
MENTAL MATH
5 x 3 =
15
bonus!
congratz!