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leonid [27]
3 years ago
8

Select 2 strategies that we can use to add 115+497

Mathematics
1 answer:
Gemiola [76]3 years ago
6 0

Answer:

  B. Add 115+500 then subtract 3

  C. Add 112+500

Step-by-step explanation:

Any strategy that gives a sum of 612 will work. Strategy A gives a sum of 602, so is not useful.

The appropriate choices are B and C.

  B: 115 +497 = 115 +(500 -3) = (115 +500) -3

  C: 115 +497 = 115 +497 -3 +3 = (115 -3) +(497 +3) = 112 +500

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