Addition
What is 24 +16?
40
What is 52 − 20?
32
A math problem told as a story is called a ___
Story Problem
Add: 35 + 25
60
Subtraction means to do what?
Take away
One-step problems need how many operations?
One
What does addition help us find?
The total
Solve: 67 − 35
32
Two-step problems need how many operations?
What symbol means addition?
+
What symbol shows subtraction?
-
Which operation would you use if someone gives away items?
Subtraction
Solve: 48 + 22
70
What does subtraction help us find?
How many are left
Which operation would you use if more items are added?
Addition