Adding with regrouping

Front

What is adding with regrouping?

Back

Adding with regrouping is a method used when the sum of two digits in a column is 10 or more. You carry over the extra value to the next column.

Tags

CCSS.2.NBT.B.7

Front

What do we do when we add 8 and 7?

Back

When adding 8 and 7, we get 15. We write down 5 and carry over 1 to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the first step in adding with regrouping?

Back

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

Tags

CCSS.2.NBT.B.7

Front

If we have 27 + 36, what do we add first?

Back

We add the ones place first: 7 (from 27) + 6 (from 36) = 13.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What do we do with the 13 in the ones place?

Back

We write down 3 and carry over 1 to the tens place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

After carrying over, what do we add in the tens place for 27 + 36?

Back

We add 2 (from 27) + 3 (from 36) + 1 (the carry) = 6.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the final answer for 27 + 36?

Back

The final answer is 63.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is regrouping in addition?

Back

Regrouping in addition is when you carry over a value to the next column when the sum exceeds 9.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you write the carry in addition?

Back

You write the carry above the next column to the left.

Tags

CCSS.2.NBT.B.7

Front

What happens if we add 9 and 5?

Back

Adding 9 and 5 gives us 14. We write down 4 and carry over 1.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4