Asked by Emma

Antonio said, "To solve 506-288, I can think of 5 hundreds as 50 tens." How might this help him subtract?
Answered by Count Iblis
It will only help him if the number 100 is new to him. Otherwise I would adivice him to compute 500 - 300 and then add 6 and add 12, so the answer is 218.
Answered by blaze
218
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