Shortcuts On Finding The Square Root
Shortcuts on Finding Square Roots
Finding the square root of a 4-digit perfect square ending in 5
Sample Problem Number One :
Find the square root of 5675
Step One : Drop the first two digits of the square . 56
Step Two: Find the largest square root of the remaining digits. This is the first digit of
The square root. Find the largest root in 56 :
7 X 7 = 49
The first digit in the square root is 7
Step Three : Append 5 to 7 =è75
Therefore the square root of 5625 is 75.
Sample Problem Number Two:
Find the square root of 7225
Step One : 72
Step Two : Find the largest square root in 72.
8 X 8 = 64
The first digit in the square root is 8.
Step Three : Append 5 to 8
Therefore the square root of 7225 is 85.
Sample Problem Three : Find the square root of 3025
Step One : 30
Step Two; Find the largest square root in 30
5 X 5 = 25
The first digit in the square root is 5.
Step Three : Append 5 to 5
Therefore the square root of 3025 is 55.
Sample Problem Number Four : Find the square root of 9025
Step One : 90
Step Two : Find the largest square root in 90
9 X 9 = 81
The first digit in the square root is 9.
Step Three : Append 5 to 9
Therefore the square root of 9025 is 95.