Addition
3+2
5
7-4
3
There are 12 chairs in a classroom. Seven children are sitting down. How many chairs are empty?
5 chairs are empty
+
Addition
7+7
14
9-5
9
A shelf has 14 books. Six are checked out. Then 2 books are returned. How many books are on the shelf now?
There are 10 books on the shelf
-
Subtraction
8+10
18
19-6
13
There are 9 fish in one tank and 7 fish in another. The store moves 4 fish from the first tank to the second. How many fish are in each tank now?
The first tank has 13 fish. The second tank has 3 fish
Equal
12+7
19
17-6
11
She is incorrect. She will have 9 balloons
Does addition get bigger or smaller?
Bigger
22+9
31
30-6
24
I am thinking of a number. If you add 5, you get 12. What is my number?
7
Does subtraction get bigger or smaller?