High School Maths Examples and Questions

to top menu   go back a page   Search    to Numbers

Square Roots

We already know that a number multiplied by itself is a square (refer to Squares)
The square root works the other way: where you have the resulting square, and you want to find the number that is multiplied by itself to get the square

Square 32 = 3 × 3 = 9
Square root √9 = 3
Square root can also
be written as
9½ = 3

• Examples

Square root Square
1. √4 = 2 22 = 2 × 2 = 4
2. √9 = 3 32 = 3 × 3 = 9
3. √16 = 4 42 = 4 × 4 = 16
4. √25 = 5 52 = 5 × 5 = 25

to top menu   go back a page   Search   to:    questions