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You need to regroup when you have something like 46-39. You would cross out the 6 and make it a 16, because you are taking ten from the 4, then you cross out the 4 then make it a three, then you should get 7.

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Q: When do you need to regroup in subtraction?
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Related questions

When do you regroup in a subtraction sentence?

No.


When do you need to regroup hundreds in a subtraction problem?

When the lower digit is greater than the upper one.


When do you regroup in subtraction?

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What do borrow trade and regroup mean in subtraction?

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When might i need to regroup more than one time?

You might need to regroup more than once when performing multi-digit addition or subtraction, especially when the sum or difference of two numbers exceeds the place value of the column you are working in. For example, when adding numbers like 456 and 378, regrouping may be required in both the tens and hundreds columns. Similarly, when subtracting numbers like 804 and 297, regrouping may be necessary multiple times to ensure accurate results.


When do you need to regroup?

No


Do you need to regroup to find 73 - 35?

38


How do you know if you need to regroup when finding a sum?

If the total in any column exceeds nine, you will have to regroup.


Do you need to regroup the ones in 48?

no


What regroup mean in subtraction?

Regrouping in subtraction means that if you can't subtract because the digit on the bottom has a greater value than the digit on the top (such as 3-6), you have to "regroup" and subtract on from the top digit to the left of the digits your working with and then add a ten to the top digit your working with. Finally, you subtract. (645-9=630+15-9) Hope that makes sense!


Do you need to regroup on 56 plus 9?

Yes.