Regrouping Addition

Front

What is regrouping in addition?

Back

Regrouping in addition is when you combine numbers and if the sum is more than 10, you carry over to the next place value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you add 35 and 15 using regrouping?

Back

First, add the ones: 5 + 5 = 10. Write down 0 and carry over 1. Then add the tens: 3 + 1 + 1 (carried over) = 5. So, 35 + 15 = 50.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 93 and 0?

Back

The sum of 93 and 0 is 93.

Tags

CCSS.1.OA.B.3

Front

What is 49 + 0?

Back

49 + 0 = 49.

Tags

CCSS.1.OA.B.3

Front

What is 20 + 10?

Back

20 + 10 = 30.

Tags

CCSS.2.NBT.B.5

Front

What is the sum of 81 and 10?

Back

81 + 10 = 91.

Tags

CCSS.2.NBT.B.5

Front

If you have 30 pencils and get 20 more, how many do you have?

Back

30 + 20 = 50 pencils.

Tags

CCSS.2.OA.A.1

Front

What do you do when the sum of the ones is more than 10?

Back

You regroup by carrying over 1 to the next place value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is 15 + 15?

Back

15 + 15 = 30.

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Front

If you have 40 and add 10, what do you get?

Back

40 + 10 = 50.

Tags

CCSS.2.NBT.B.5