Subtraction within 20

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the process of taking one quantity away from another. It is the inverse of addition.

Tags

CCSS.1.OA.B.3

Front

What is the result of 5 - 2?

Back

The result of 5 - 2 is 3.

Tags

CCSS.1.OA.C.6

Front

What is the result of 10 - 7?

Back

The result of 10 - 7 is 3.

Tags

CCSS.2.OA.A.1

Front

What is the result of 7 - 4?

Back

The result of 7 - 4 is 3.

Tags

CCSS.1.OA.C.6

Front

What is the result of 15 - 5?

Back

The result of 15 - 5 is 10.

Tags

CCSS.2.OA.A.1

Front

What is the result of 18 - 15?

Back

The result of 18 - 15 is 3.

Tags

CCSS.2.OA.A.1

Front

What is the term for the number being subtracted in a subtraction operation?

Back

The number being subtracted is called the 'subtrahend'.

Tags

CCSS.5.NBT.B.7

Front

What is the term for the number from which another number is subtracted?

Back

The number from which another number is subtracted is called the 'minuend'.

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations; adding a number and then subtracting the same number returns you to the original number.

Tags

CCSS.2.NBT.B.5

Front

How can you check your subtraction answer?

Back

You can check your subtraction answer by adding the result to the subtrahend; if it equals the minuend, your answer is correct.

Tags

CCSS.1.OA.A.1