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Making Tens. Category 1. Two addends that make a quick ten. 7 + 3 7 + 5 + 3 3 + 6 + 7. 8 + 2 2 + 4 + 8 8 + 3 + 2. 6 + 4 4 + 9 + 6 6 + 8 + 4. 5 + 5 5 + 6 + 5 5 + 9 + 5. 9 + 1 9 + 7 + 1 1 + 6 + 9. 3 + 5 +7 6 + 5 + 4 2 + 9 + 8. 9 + 5 + 1 8 + 9 + 1 1 + 4 + 9. 2 + 5 + 8
E N D
Category 1 Two addends that make a quick ten.
7 + 3 7 + 5 + 3 3 + 6 + 7
8 + 2 2 + 4 + 8 8 + 3 + 2
6 + 4 4 + 9 + 6 6 + 8 + 4
5 + 5 5 + 6 + 5 5 + 9 + 5
9 + 1 9 + 7 + 1 1 + 6 + 9
3 + 5 +7 6 + 5 + 4 2 + 9 + 8
9 + 5 + 1 8 + 9 + 1 1 + 4 + 9
2 + 5 + 8 4 + 7 + 6 5 + 5 + 8
3 + 8 + 7 9 + 1 + 2 4 + 9 + 6
Category 2 Two pairs of numbers that make a quick ten.
4 + 6 + 8 + 2 9 + 3 + 1 + 8 5 + 6 + 5 + 4
4 + 6 + 8 + 2 9 + 3 + 1 + 8 5 + 6 + 5 + 4
3 + 9 + 7 + 1 2 + 9 + 8 + 1 6 + 4 + 3 + 7
4 + 8 + 2 + 6 1 + 9 + 2 + 8 5 + 4 + 7 + 5
3 + 8 + 2 + 7 4 + 4 + 6 + 6 9 + 1 + 1 + 9
5 + 7 + 3 + 5 2 + 5 + 5 + 8 6 + 6 + 4 + 4
3 + 7 + 8 + 2 1 + 1 + 9 + 9 3 + 7 + 7 + 3
5 + 3 + 5 + 4 + 7 9 + 5 + 8 + 2 + 1 4 + 5 + 6 + 3 + 7
3 + 8 + 5 + 5 + 2 9 + 1 + 6 + 3 + 4 7 + 2 + 3 + 5 + 8
2 + 6 + 8 + 3 + 4 9 + 3 + 1 + 5 + 5 4 + 8 + 6 + 2 + 7
Category 3 Encourages students to make a quick ten by decomposing at least one of the numbers.
9 + 1 9 + 1 + 4 9 + 5 9 + 8
10 + 5 9 + 5 10 + 7 9 + 7
9 + 3 9 + 5 9 + 6 9 + 9
10 + 14 9 + 14 10 + 23 9 + 23
8 + 2 8 + 2 + 3 8 + 5 8 + 4
10 + 5 8 + 5 10 + 7 8 + 7
8 + 2 8 + 5 8 + 4 8 + 7
10 + 12 8 + 12 10 + 23 8 + 23
7 + 3 9 + 3 + 2 7 + 5 7 + 6
10 + 6 7 + 6 10 + 4 7 + 4
7 + 3 7 + 6 7 + 4 7 + 5
10 + 13 7 + 13 10 + 25 7 + 25