Double Digit Addition with Regrouping

Front

What is double digit addition?

Back

Double digit addition is the process of adding two numbers that each have two digits, such as 34 + 27.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What does regrouping mean in addition?

Back

Regrouping in addition means carrying over a value from one column to the next when the sum exceeds 10.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 34 + 27

Back

61

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the first step in double digit addition with regrouping?

Back

The first step is to add the digits in the ones place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What do you do if the sum of the ones place is 10 or more?

Back

If the sum is 10 or more, you regroup by carrying over 1 to the tens place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 58 + 37

Back

95

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the second step in double digit addition with regrouping?

Back

The second step is to add the digits in the tens place, including any regrouped value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 76 + 29

Back

105

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is a common mistake in double digit addition?

Back

A common mistake is forgetting to add the regrouped value to the tens place.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 45 + 68

Back

113

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5