3-digit addition/subtraction 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 9.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

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

Solve: 353 + 918 = ?

Back

1271

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 967 - 899 = ?

Back

68

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 918 - 871 = ?

Back

47

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 985 + 606 = ?

Back

1591

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 188 + 924 = ?

Back

1112

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What do you do when the sum of a column is greater than 9?

Back

You regroup by carrying over 1 to the next column.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

Front

What do you do when you need to subtract a larger number from a smaller number in a column?

Back

You regroup by borrowing 1 from the next column.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the sum of 200 + 300 + 400?

Back

900