Some Easy Tricks for Two Digit Addition

Tricks for Two Digit Addition

Good skills in addition are an asset to students while solving Math problems at advanced level. Here are a few tricks that help you add numbers quickly and do sums with ease and confidence.

Adding 10 to a two digit number is easy since you have to increase the digit in the 10Th place by adding 1.

For example,


It is very simple as you have just added 1 to the number 2 which is in the tenth place in 21.Using this as a rule of thumb, you can add more complicated numbers .



There are two methods for adding these two digit numbers.

Method 1

You can split 69 as 70-1

Now you add

81+70-1= 151-1


So you need not take a paper and pencil to add 81+69 but can use the multiplication of 10 that is nearest to the number 69, add numbers and subtract 1 from it for getting the answer.

Method 2

To get the answer for 81+69, you can follow this method also.

Split 69 into 60+9




Here also you do addition with ease without breaking your head over a two digit sum.

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