# Class I Subtraction

Subtracting a Number from Itself

## 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 removefrom 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.

**Examples 2.**Subtract 3 from 7.

**Solution.**Answer can be written as shown below.

## Subtracting Zero

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

## Subtracting a Number from Itself

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

## 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.**

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.**

So, 10 people are there in the van.

## Class-1 Subtraction Test

## Class-1 Subtraction Worksheet

## Answer Sheet

**Answer Sheet**Download the pdf

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