When do you need to regroup, explain?

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asked Mar 12, 2017 217k views

1 Answer

Ever · Answer 1 · 2017-03-16T12:27:06+0000

For an example when you need to regroup like for example
15
+9
_____
You will see 9+ 5 = 14 so you will need to regroup the one into the 1 and leave the 4 below the 5 and 9

I might not be answering your question though, because I need to know what equation is it

When do you need to regroup, explain?

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