Subtract!
10 - 6
4
7 + 8 =
15
6 x 3 =
18
12/2 =
6
What does "sum" mean
addition
Mental Math
Fiona has $20. She buys a phone charger for $15. How much money does she have left?
$5
61 + 7=
68
4 x 9
36
28 divided into 4 groups
7
What operation do you use if you are trying to find the PRODUCT of two numbers
multiply
60 - 30 =
30
Sean came to school with 7 pencils. On his way to lunch, he found 12 more. How many pencils does Sean have in total?
19
8 x 5=
40
40/2=
20
What is the word "in all" mean?
addition
Thomas has 6 marbles. He gives Rachel 3 and Cory 3. How many marbles does Thomas have left?
0
30 + 21
51
9 x 7 =
63
54 divided into 6 groups
9
If a word problem asks you "how much do you have in total" you should use this operation
addition
62 - 41 =
21
7+7+1
15
Michael has 6 cookies. Robert has 2 times more than Michael. How many cookies does Robert have?
12
81 divided into 9 groups
9
What does “difference” mean when solving a problem
Subtraction