Class I Subtraction

Basic Subtraction

When we remove something from a group of things then the process is known as subtraction or deduction. We use minus(-) sign for subtraction.
There are 5 stars as shown.
If we remove Basic-Subtraction2 from the group of stars, then will remain.
We write it as 5 − 2 = 3
We read it as 5 minus 2 is equal to 3

Examples 1. Subtract 4 from 9.

Solution.Answer can be written as shown below.
Basic-Subtraction4

Examples 2.Subtract 3 from 7.

Solution.Answer can be written as shown below.
Basic-Subtraction4

Subtracting Zero

When you subtract zero from any number, then the answer would be same number.
Basic-Subtraction5

Subtracting a Number from Itself

When we subtract a number from itself, the answer will always be zero.
Basic-Subtraction6

Story Subtraction

In our day to day life we will come across these simple subtractions.

Example 1.There are 9 birds on a tree. If 5 birds fly away, then how many are left on the tree?

Solution.
Basic-Subtraction7
So, 4 birds left on the tree.

Example 2.There are 12 people on a van. If 2 people got down, then how many people remain in the van?

Solution.
Basic-Subtraction8
So, 10 people are there in the van.