Final answer:
The strategy involves sequentially adding numbers to find sums and breaking down larger numbers into manageable parts before performing the addition operation.
Explanation:
Strategy: One strategy to find 8 + 5 is to combine the numbers sequentially, starting with 8 and adding 5, resulting in 13. To use this sum to find 28 + 5, you can break down 28 into 20 and 8, then add 5, finally adding the results: 20 + 5 = 25, then 25 + 8 = 33.
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