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Published byRoland Harmon Modified over 9 years ago
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Making Tens
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Category 1 Two addends that make a quick ten.
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7 + 3 7 + 5 + 3 3 + 6 + 7
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8 + 2 2 + 4 + 8 8 + 3 + 2
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6 + 4 4 + 9 + 6 6 + 8 + 4
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5 + 5 5 + 6 + 5 5 + 9 + 5
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9 + 1 9 + 7 + 1 1 + 6 + 9
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3 + 5 +7 6 + 5 + 4 2 + 9 + 8
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9 + 5 + 1 8 + 9 + 1 1 + 4 + 9
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2 + 5 + 8 4 + 7 + 6 5 + 5 + 8
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3 + 8 + 7 9 + 1 + 2 4 + 9 + 6
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Category 2 Two pairs of numbers that make a quick ten.
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4 + 6 + 8 + 2 9 + 3 + 1 + 8 5 + 6 + 5 + 4
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4 + 6 + 8 + 2 9 + 3 + 1 + 8 5 + 6 + 5 + 4
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3 + 9 + 7 + 1 2 + 9 + 8 + 1 6 + 4 + 3 + 7
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4 + 8 + 2 + 6 1 + 9 + 2 + 8 5 + 4 + 7 + 5
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3 + 8 + 2 + 7 4 + 4 + 6 + 6 9 + 1 + 1 + 9
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5 + 7 + 3 + 5 2 + 5 + 5 + 8 6 + 6 + 4 + 4
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3 + 7 + 8 + 2 1 + 1 + 9 + 9 3 + 7 + 7 + 3
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5 + 3 + 5 + 4 + 7 9 + 5 + 8 + 2 + 1 4 + 5 + 6 + 3 + 7
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3 + 8 + 5 + 5 + 2 9 + 1 + 6 + 3 + 4 7 + 2 + 3 + 5 + 8
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2 + 6 + 8 + 3 + 4 9 + 3 + 1 + 5 + 5 4 + 8 + 6 + 2 + 7
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Category 3 Encourages students to make a quick ten by decomposing at least one of the numbers.
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9 + 1 9 + 1 + 4 9 + 5 9 + 8
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10 + 5 9 + 5 10 + 7 9 + 7
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9 + 3 9 + 5 9 + 6 9 + 9
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10 + 14 9 + 14 10 + 23 9 + 23
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8 + 2 8 + 2 + 3 8 + 5 8 + 4
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10 + 5 8 + 5 10 + 7 8 + 7
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8 + 2 8 + 5 8 + 4 8 + 7
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10 + 12 8 + 12 10 + 23 8 + 23
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7 + 3 9 + 3 + 2 7 + 5 7 + 6
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10 + 6 7 + 6 10 + 4 7 + 4
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7 + 3 7 + 6 7 + 4 7 + 5
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10 + 13 7 + 13 10 + 25 7 + 25
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