If you are able to remember or arrive at the values given in the table, you can do any subtracting with the procedure, we are going to see.
Example 3 : using of Subtraction table
Find 63 - 39 using Subtraction table
Solution : Write 39 below 63.
First we have to subtract bottom digit in the units' place from the upper digit in the units' place.
i.e. we have to subtract 9 from 3. But 9 is bigger than 3.
So, we have to borrow one (one10) from the digit in tens' place i.e. 6.
Because of this borrowing, 3 in units' place becomes 13 and 6 in tens' place becomes 5.
When we borrow 1 from the immediate left digit, that borrowing makes the digit in the right place increase by 10. This is so, because the immediate left place value is 10 times the place value of the right.
Now subtract 9 from 13 which gives 4 (See table above.) in the units' place.
In Tens' place, we have to subtract 3 from 5 to get 2.
So the answer is 24.
This process is shown in the vertical presentation below.
See 3 in the units' place is striked off to become 13 and 6 in the tens' place is striked off to become 5.
13 - 9 = 4 is written in the units' place of the answer.
5 - 3 = 2 is written in the tens' place of the answer.
Thus, 63 - 39 = 24.Ans.
Check : We know, minuend - subtrahend = result. or subtrahend + result = minuend.
We use this idea to check the accuracy of our Subtracting.
We add subtrahend and result and verify whether it is equal to minuend or not.
Here, You may add 24 and 39 and check whether it is equal to 63 or not.
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The solution is presented above. The explanation is similar to the one given in the previous example.
Thus, 92 - 57 = 35.
Check : You may add 35 and 57 and check whether it is equal to 92 or not.
It is verified to be correct.
Learning/Teaching Math Can Be Fun : Subtraction table
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Exercise : using of Subtraction table
Subtract the second number from the first. Also check your result.
For Answers see at the end of the page.
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