Question
Why can a subtraction problem be rewritten as an additional problem without changing the outcome? Give a real-world scenario where this might be modeled.
Answers
Ms. Sue
You have $10. You spend $4.00 for a cup of coffee. How much do you have left?
10 - 4 = 6
6 + 4 = 10
10 - 4 = 6
6 + 4 = 10
oh okay thanks Ms. Sue
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