# Subtracting Three Digit Numbers

An interactive math lesson of subtracting three digit numbers.
Steps to follow with an example as 524 - 138 :
• Write the given numbers one below the other in such a way that hundreds, tens and one places are lined up. Draw a line below it and put the '-' (minus) sign before the second number.
 H T O 5 2 4 - 1 3 8--------------
• As digit at ones place 4 is less than 8 so borrow 1 from tens place digit so 4 becomes 14 and digit at tens place reduces by 1. New number becomes
4 --> 14 and 2 --> 1.
 1 14 5 2    4 - 1    3    8--------------
• 14 - 8 = 6 place this in ones column. Now (1 - 3 = ? ) Again borrow 1 from hundreds place. So 1 becomes 11 and 5 becomes 4.
 11 4 1 14 5 2 4 - 1 3 8------------ 6
• 11- 3 = 8 place this in tens column and in hundred column there is
4 - 1 = 3.
 11 4 1 14 5 2 4 - 1 3 8-------------- 3 8 6
So, 524 - 138 = 386.
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Example 1 : Subtract 658 - 472.
Solution:
 14 5 4 6 5 8 - 4 7 2-------------- 1 8 6
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Example 1 : Subtract 560 - 79.
Solution:
 15 4 5 10 5 6 0 - 7 9-------------- 4 8 1
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Example 3 : Subtract 256 - 39.
Solution:
 4 16 2 5    6 - 3 9-------------- 2 1 7

Practice

 3 8 0 - 1 6 4-------------- 6 9 0 - 3 7 1-------------- 8 6 3 - 7 7 3-------------- 5 9 8 - 3 1 9-------------- 4 3 6 - 2 7 3-------------- 8 4 6 - 1 3 8-------------- 5 4 7 - 3 6 8-------------- 8 0 1 - 2 4 6-------------- 9 3 6 - 7 5 8-------------- 6 0 6 - 5 2 7-------------- 6 9 5 - 4 6 8-------------- 6 1 7 - 2 8--------------

Subtracting three digit numbers