We shall learn some tricks in subtraction also.

__Quick
Ways of subtracting__

We shall learn some tricks in
subtraction also.

__1. ____We shall use the subtraction table to subtract small numbers__

** **

__2. Some facts in
subtraction __

**subtracting 0 from a number**

A number remains the same when you
subtract 0 from it

**Subtracting 1 from a number**

When 1 is subtracted from a number, it
gives a number before that number.

**Subtracting 2 from a number**

When 2 is Subtracted from a number,
the numbers moves backward 2 steps

**Subtracting 10 from a number**

When 10 is Subtracted from a number its ones place remains the same and digit in 10 place is decreased by 1 i.e., moves to the previous number.

__3. ____Subtracting same numbers__

Subtracting a number from itself will give the
difference 0.

__Example__

Find the difference of 978−978 = 0

** **

__4. Subtracting numbers
ending with 0__

Subtract 1 from both numbers and then do the actual
subtraction

__Example__

Find the difference of 340 − 229

__Example__

Find the difference of 1000−574

As we subtract 1 from both the numbers
the answer of the new numbers and question are same.

**Subtract the given numbers using the above
facts.**

Tags : Information Processing | Term 3 Chapter 7 | 3rd Maths , 3rd Maths : Term 3 Unit 7 : Information Processing

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3rd Maths : Term 3 Unit 7 : Information Processing : Quick Ways of subtracting | Information Processing | Term 3 Chapter 7 | 3rd Maths

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