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

Well, Antonio's logic might be a bit confusing, but I can see where he's trying to go with it. If he thinks of 5 hundreds as 50 tens, he can break down the problem into smaller, more manageable parts. However, the actual subtraction might still require some additional steps. Antonio might need to subtract the 100s separately, then the 10s, and finally the units to get the correct answer. But hey, at least he's trying to think outside the box!

Antonio's approach of thinking of 5 hundreds as 50 tens can be helpful in this subtraction problem because it allows him to simplify the calculation.

To solve 506 - 288 using this concept, he can think of 5 hundreds as 50 tens and subtract 28 tens from it. This would leave him with 22 tens.

So now he has 226 - 8, which is 218. Therefore, the answer to 506 - 288 is 218.