Square Trick of Two Digits Number

Today I am sharing SQUARE TRICK OF TWO DIGITS NUMBERS.

We can understand it through example.

Example 1

72 × 72 

Solution 

Points to be follow to calculate the answer:

Steps :-

1. First of all we have to multiply right side numbers like 2 × 2 = 4. The number 4 will be on the right side of answer.
2. then multiply left side numbers like 7 × 7. The number 49 will be on the left side of answer
3. Now find the middle term and should add to the left digits like :  2 + 2 = 4 × 7 = 28 or 7 + 7 = 14 × 2 = 28
4. 2 of 28 must be carried forward and add in 49 i.e 49 + 2 = 51.

Example 2

49 × 49

Solution 

Example 3 

26  × 26

Solution

Example 4 

83 ×  83

Solution

Example 5 

78 × 78

Solution

==>> Get more Maths Tricks here

Example

352 × 352 

Steps :-

1.       First of all we have to multiply right side numbers like 2 × 2 = 4. The number 4 will be on the right side of answer.

2.      then multiply left side numbers like 35× 35. The number 1225 will be on the left side of answer

3.      Now find the middle term like :  35 + 35 = 70 × 2 = 140  or 2 + 2 = 4 × 35 = 140

4.      Now add this middle term 140 in answer as diagram shows.

This trick is also used for the number which contains same number either at unit place or tens place.

Example 

83 ×  43

Steps :-

1.       First of all we have to multiply right side numbers like 3 × 3 = 9. The number 9 will be on the right side of answer.

2.      Then multiply left side numbers like 8× 4. The number 32 will be on the left side of answer

3.      Now find the middle term like :  8+ 4 = 12 × 3 = 36 

4.      Now add this middle term 36 in answer as diagram shows.

This article is written by Vardini in notes sharing contest