Mr. C Two Digit Subtraction with Regrouping (2)

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next higher place value to help subtract a smaller number from a larger number.

Front

What is the first step in subtracting two-digit numbers with regrouping?

Back

The first step is to look at the ones place. If the top number is smaller than the bottom number, you need to regroup.

Front

How do you regroup when subtracting 75 - 39?

Back

You take 1 ten from the 7 in 75, making it 6 tens, and add 10 to the 5 in the ones place, making it 15. Then you can subtract 15 - 9.

Front

What is 15 - 9?

Back

15 - 9 = 6.

Front

What is the result of 75 - 39 after regrouping?

Back

75 - 39 = 36.

Front

What is the second step in subtracting two-digit numbers with regrouping?

Back

After regrouping, subtract the ones place first, then subtract the tens place.

Front

What is 64 - 26?

Back

64 - 26 = 38.

Front

What do you do if you cannot subtract in the ones place?

Back

You regroup by borrowing from the tens place.

Front

What is 84 - 39?

Back

84 - 39 = 45.

Front

What is 75 - 27?

Back

75 - 27 = 48.