28 + 24
20 + 8 + 20 + 4
20 + 20 + 8 + 4
40 + 12
40 + 10 + 2
50 + 2
52
Kendrick D.
asked 02/11/19Use a strategy to find the sum of 28+24
28 + 24
20 + 8 + 20 + 4
20 + 20 + 8 + 4
40 + 12
40 + 10 + 2
50 + 2
52
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