Subtraction within 20

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the process of removing objects from a collection. It is the inverse of addition.

Front

What is the result of subtracting a number from itself?

Back

The result of subtracting a number from itself is always 0.

Tags

CCSS.1.OA.B.3

Front

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

Back

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

Front

What is the result of the subtraction operation called?

Back

The result of the subtraction operation is called the 'difference.'

Front

Calculate: 10 - 8 = ?

Back

2

Tags

CCSS.1.OA.C.6

Front

Calculate: 18 - 8 = ?

Back

10

Tags

CCSS.2.OA.A.1

Front

Calculate: 7 - 7 = ?

Back

0

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

Front

Calculate: 1 - 1 = ?

Back

0

Tags

CCSS.1.OA.C.6

Front

Calculate: 19 - 3 = ?

Back

16

Tags

CCSS.2.OA.A.1