(1.) Counting On: 8 + 3 = 11 (Start with the 8 and count on 3 more. Be sure to begin with the largest number.)

(2.) Making Ten: 9 + 1 = 10, 8 + 2 = 10, 7 + 3 = 10

(3.) Fast Tens: 10 + 6 = 16, 10 + 8 = 18

(4.) Doubles: 7 + 7 = 14, 4 + 4 = 8

(5.) Doubles + One: 7 + 6 = 13 (Think of the double 6 + 6 = 12, so 7 + 6 = 13)

SUBTRACTION STRATEGIES

1. Counting Back: This is a good strategy if you are subtracting 1, 2, or 3.
9 – 1 = 8 7 – 2 = 5 7 – 3 = 4

2. Counting Up: 10 – 7 = 3 (Think 7 and count up to 10)

3. Fact Families: Ex: 3, 4, 7
3 + 4 = 7 7 – 4 = 3
4 + 3 = 7 7 – 3 = 4

4. Doubles: If you know that 7 + 7 = 14, then 14 – 7 = 7

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