Adding and Subtracting with Regrouping

Front

What is adding?

Back

Adding is combining two or more numbers to find their total.

Tags

CCSS.1.OA.A.1

Front

What is subtracting?

Back

Subtracting is taking one number away from another to find the difference.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

What does regrouping mean in addition?

Back

Regrouping in addition means carrying over a value to the next column 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

73 + 13 = ?

Back

86

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

10 + 23 = ?

Back

33

Tags

CCSS.2.NBT.B.5

Front

86 - 57 = ?

Back

29

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

63 - 49 = ?

Back

14

Tags

CCSS.2.NBT.B.5

Front

21 + 47 = ?

Back

68

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 5 and 7?

Back

The sum of 5 and 7 is 12.

Tags

CCSS.1.OA.A.1