2 Digit Adding with Regrouping

Front

What is regrouping in addition?

Back

Regrouping is the process of carrying over a value from one place value to the next when the sum of a column exceeds 10.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 28 and 56?

Back

84

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 72 and 18?

Back

90

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 65 and 29?

Back

94

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

When adding 2-digit numbers, what do you do if the sum of the ones place is 10 or more?

Back

You regroup by carrying over 1 to the tens place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the first step in adding two 2-digit numbers?

Back

Add the numbers in the ones place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What do you do after adding the ones place in 2-digit addition?

Back

Add the numbers in the tens place, including any regrouped value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

If you have 47 + 36, what is the first addition?

Back

7 (from 47) + 6 (from 36) = 13, regroup to 1 in the tens place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is 13 + 8 in the context of regrouping?

Back

13 + 8 = 21, regroup to 2 in the hundreds place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the importance of place value in addition?

Back

Place value helps us understand the value of each digit in a number and how to add them correctly.

Tags

CCSS.2.NBT.B.7