BUILDING BASIC FACTS AUTOMATICITY

(Easier version: use a hundred's chart to add the numbers.) 5. Variations: Try playing it in reverse - subtract one-digit numbers from 100, the first player to reach zero is the winner. You could also try with numbers between one and 20 to reach a final sum of 517 or 739, or whatever. For these variations, a calculator may be use. Subtraction Games ................
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