Adding and Subtracting with regrouping

Front

What is regrouping in addition?

Back

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

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is regrouping in subtraction?

Back

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

Tags

CCSS.7.NS.A.1C

Front

What do you do when adding two-digit numbers that sum to more than 10?

Back

You regroup by carrying over to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What do you do when subtracting and the top number is smaller than the bottom number?

Back

You regroup by borrowing from the next column.

Tags

CCSS.7.NS.A.1C

Front

Calculate: 29 + 46 = ?

Back

75

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Calculate: 58 - 29 = ?

Back

29

Tags

CCSS.2.NBT.B.5

Front

Calculate: 87 + 36 = ?

Back

123

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

Calculate: 100 - 47 = ?

Back

53

Tags

CCSS.2.NBT.B.5

Front

What is the sum of 34 and 29?

Back

63

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the difference when you subtract 15 from 42?

Back

27

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2