Subtraction Regrouping Basics

Finish my sentence:

More on the floor, ________________.

• switch the numbers around.

• put a zero.

• go next door and get ten more.

• pick it up!

Tags

CCSS.1.NBT.C.4

CCSS.1.NBT.C.5

If the numbers in the ones place are the same, do I need to regroup?

• No
• Yes

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.5

CCSS.2.NBT.B.9

Finish this sentence:

More on top, ________________.

• go, go, go.

• no need to stop.

• switch the numbers.

• you made a mistake.

If you need more ones, where do you get them?

• Disney World
• the bank
• Mrs. Shank
• the tens place

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.A.1

How do I know if I need to regroup?

• Every problem needs regrouping.
• When you don't have enough for subtraction.

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.5

CCSS.2.NBT.B.6

CCSS.2.NBT.B.9

Finish my sentence: What I regroup I need to: zap it, shrink it, _______________

• give it a one

• give it a ten

• give it a high-five

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.5

Do you need to regroup this problem?

• Yes

• No

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.A.1

Do you need to regroup this problem?

• Yes

• No

Tags

CCSS.2.NBT.B.7

Do you need to regroup this problem?

• Yes

• No

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.A.1

CCSS.2.NBT.B.6

Do you need to regroup this problem?

• Yes

• No

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.A.1