Adding and subtracting with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is when you combine numbers and if the sum is more than 10, you carry over the extra to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next column if the top number is smaller than the bottom number.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

68 - 35 = ?

Back

33

Tags

CCSS.2.NBT.B.5

Front

54 + 28 = ?

Back

82

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

73 + 13 = ?

Back

86

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

64 + 29 = ?

Back

93

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

10 + 23 = ?

Back

33

Tags

CCSS.2.NBT.B.5

Front

What does it mean to add?

Back

To add means to combine two or more numbers to get a total.

Tags

CCSS.1.OA.C.6

Front

What does it mean to subtract?

Back

To subtract means to take one number away from another.

Tags

CCSS.1.OA.A.1

Front

What is the sum of 5 and 7?

Back

12

Tags

CCSS.2.OA.C.3