Addition and Subtraction with regrouping

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Tags

CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Tags

CCSS.2.NBT.B.7

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

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing from the next column when the top number is smaller than the bottom number.

Tags

CCSS.7.NS.A.1C

Front

What is the sum of 77 and 32?

Back

The sum of 77 and 32 is 109.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is 56 minus 29?

Back

56 minus 29 equals 27.

Tags

CCSS.7.NS.A.1C

Front

What is the sum of 254 and 56?

Back

The sum of 254 and 56 is 310.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 68 and 88?

Back

The sum of 68 and 88 is 156.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is 47 plus 75?

Back

47 plus 75 equals 122.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you add two-digit numbers?

Back

To add two-digit numbers, start from the rightmost column, add the digits, and regroup if necessary.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2