2-Digit Subtraction with Regrouping

Front

What is 2-digit subtraction?

Back

2-digit subtraction is the process of subtracting a two-digit number from another two-digit number.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing from the next higher place value when the top digit is smaller than the bottom digit.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in 2-digit subtraction?

Back

The first step is to line up the numbers by their place values (tens and ones).

Tags

CCSS.2.NBT.B.7

Front

How do you subtract the ones place?

Back

Subtract the digits in the ones place. If the top digit is smaller, regroup from the tens place.

Tags

CCSS.2.NBT.B.7

Front

What do you do if you need to regroup?

Back

If you need to regroup, take 1 from the tens place, add 10 to the ones place, and then subtract.

Tags

CCSS.2.NBT.B.7

Front

What is 87 - 5?

Back

82

Tags

CCSS.2.OA.A.1

Front

What is 45 - 2?

Back

43

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CCSS.1.OA.C.6

Front

What is 72 - 3?

Back

69

Tags

CCSS.1.OA.C.6

Front

What is 54 - 7?

Back

47

Tags

CCSS.2.OA.A.1

Front

What is 82 - 7?

Back

75

Tags

CCSS.7.NS.A.1C