Solved Examples Using Addition Tricks
Example 1: Add 35 and 47.
Solution:
Break down into tens and units:
35 = 30 + 5
47 = 40 + 7
(30+40) + (5+7) = 70+12 = 82
Example 2: Add 58 and 34.
Solution:
Round 58 to 60 (add 2), then subtract 2 at the end:
60 + 34 = 94
94 − 2 = 92
Example 3: Add 67 and 29.
Solution:
67 is close to 70, so we can round it up and adjust:
67→70(complement is 3)
29 − 3 = 26
70 + 26 = 96
Example 4: Add 128 and 345.
Solution:
Split into hundreds, tens, and units:
(100 + 300) + (20 + 40) + (8 + 5)
= 400 + 60 + 13
= 473
Example 5: Add 53 and 51.
Solution:
Think of 52 + 52:
52 + 52 = 104
Adjust for the difference:
53 + 51 = 104 + 1 − 1 = 104
Addition Tricks
Addition Tricks are are the techniques that helps to calculate sum in a very quick manner. It is fundamental to learn all the addition tricks in the mathematics to perform quick addition. In this article, we will learn addition tricks for performing sum of large numbers without use of pen and paper. This article also has solved examples and practice questions to help the students thoroughly with the concept.