Counting by 10s, write your numbers from 0-50
0, 10, 20. 30. 40. 50
1+1
2
2+3
5
5+__=10
5
This is what we call the answer to an addition problem.
The sum.
Counting by 2s, write your numbers from 20-30
20, 22, 24, 26, 28, 30
4+4
8
3+4
7
3+__=10
The name for this symbol =
The equals sign.
Counting by 5s, write your numbers from 50-75
7+7
14
5+4
9
6+__=10
What do you call it when you add a number to itself?
A doubles fact.
Counting by ones, what comes next?
97, __, __, __, 101
98, 99, 100
9+9
18
6+7
13
10+__=10
0
This is what we call the answer to a subtraction problem.
The difference.
Counting backward by 10s, write your numbers from 40-0
40, 30, 20, 10, 0
10+10
20
8+9
17
1+__=10
What is the name of your favorite math game?
Slides and Ladders, Bump, Spider Addition, Doubles Doubles, or ...?