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 23 + 45.

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 9.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 27 + 46

Back

73

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 58 + 29

Back

87

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 34 and 19?

Back

53

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you add 56 + 27 using regrouping?

Back

First, add the ones: 6 + 7 = 13. Write down 3 and carry over 1. Then add the tens: 5 + 2 + 1 = 8. So, 56 + 27 = 83.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the first step in double digit addition?

Back

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

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 45 + 38

Back

83

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

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

Back

You write down the last digit and carry over 1 to the tens column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Solve: 62 + 19

Back

81

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5