Mip-1.6-double-facts

Use doubles facts to help them figure out facts with near doubles. For example, if you know 3 + 3, how can you use that fact to solve 3 + 4? (An example response could be, I know 3 + 3 is 6, so 3 + 4 is one more so the answer would be 7.) For students who are ready for higher numbers ask, if you know 8 + 8, how can you use that fact to solve 8 + 9? ................
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