Posted by **jack** on Monday, December 11, 2006 at 8:05pm.

ANTONIO SAID, "TO SOLVE 506-288, I CAN THINK OF 5 HUNDREDS AS 50 TENS." HOW MIGHT THIS HELP HIM SUBTRACT?

I doubt if it would help. The logic is this.

Take away 28 tens from 50 tens. that leaves 22. Now you have

226 -8 which is 218

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