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Here are some tips for Addition Grouping, which aligns with Florida state standards:
Addition Grouping
When adding numbers together, first find the pairs of numbers that add up to 10. This makes the problem easier to solve.
For example, solve 3 + 6 + 4 + 7 + 8 + 5 + 2 = ?
To simplify the problem, find the pairs that add up to 10.30 + 5 is easier to solve than 3 + 6 + 4 + 7 + 8 + 5 + 23 + 6 + 4 + 7 + 8 + 5 + 2 = ?
(3 + 7) + (6 + 4) + (8 + 2) + 5 = ?
10 + 10 + 10 + 5 = ?
30 + 5 = 35
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