Adding by 1s
Adding by 2s
3
4
Doubles
100
2 + 1
What is 3?
100
2 + 2
What is 4
100
3 + 1
What is 4
100
4 + 1
What is 5
100
1 + 1
What is 2
200
3 + 1
What is 4
200
3 + 2
What is 5
200
3 + 2
What is 5
200
4 + 3
What is 7
200
3 + 3
What is 6
300
4 + 1
What is 5?
300
5 + 2
What is 7
300
3 + 5
What is 8
300
4 + 4
What is 8
300
5 + 5
What is 10
400
7 + 1
What is 8
400
8 + 2
What is 10
400
3 + 7
What is 10
400
4 + 6
What is 10
400
8 + 8
What is 16
500
9 + 1
What is 10
500
9 + 2
What is 11
500
3 + 9
What is 12
500
4 + 9
What is 13
500
9 + 9
What is 18
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