Subtraction with regrouping

Front

What is subtraction?

Back

Subtraction is taking away a number from another number.

Tags

CCSS.2.NBT.B.7

Front

What does regrouping mean in subtraction?

Back

Regrouping means rearranging numbers to make subtraction easier, especially when borrowing from the next place value.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in subtraction with regrouping?

Back

Start from the rightmost digit (the ones place) and move left.

Tags

CCSS.7.NS.A.1C

Front

If you have 73 and you subtract 27, what do you do with the 3 in the ones place?

Back

You cannot subtract 7 from 3, so you need to regroup.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you regroup when subtracting 73 - 27?

Back

You borrow 1 from the 7 in the tens place, making it 6, and add 10 to the 3, making it 13.

Tags

CCSS.2.NBT.B.6

Front

What is 13 - 7?

Back

13 - 7 = 6.

Tags

CCSS.2.OA.A.1

Front

After regrouping, what is 6 - 2?

Back

6 - 2 = 4.

Tags

CCSS.2.OA.A.1

Front

What is the final answer for 73 - 27?

Back

The final answer is 46.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the total if John has 65 erasers and 29 pencils?

Back

John has a total of 94 items.

Tags

CCSS.2.NBT.B.6

Front

What is the result of 647 - 415?

Back

The result is 232.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2