Subtraction with and without regrouping

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how many are left after some have been taken away.

Tags

CCSS.2.NBT.B.7

Front

What does it mean to regroup in subtraction?

Back

Regrouping in subtraction means rearranging numbers to make the subtraction easier, especially when the top number is smaller than the bottom number in a column.

Tags

CCSS.7.NS.A.1C

Front

Solve: 15 - 7 = ?

Back

8

Tags

CCSS.1.OA.C.6

Front

Solve: 23 - 9 = ?

Back

14

Tags

CCSS.2.OA.A.1

Front

What is the difference between 20 and 5?

Back

The difference is 15.

Tags

CCSS.2.OA.A.1

Front

If you have 30 apples and give away 12, how many do you have left?

Back

You have 18 apples left.

Tags

CCSS.2.OA.A.1

Front

What is the term for the number being subtracted from?

Back

The term is 'minuend'.

Tags

CCSS.6.NS.B.3

Front

What is the term for the number that is subtracted?

Back

The term is 'subtrahend'.

Tags

CCSS.6.EE.A.1

Front

Solve: 42 - 25 = ?

Back

17

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What do you do when the top number is smaller than the bottom number in a column?

Back

You regroup by borrowing from the next column.

Tags

CCSS.2.NBT.B.7