Question

caluclate the square or principal square root of each number 5²=​

Answer 1

Step-by-step explanation:

Squared" is often written as a little 2 like this:

4 squared is 16

This says "4 Squared equals 16"

(the little 2 says the number appears twice in multiplying)

Squares From 02 to 62

0 Squared = 02 = 0 × 0 = 0

1 Squared = 12 = 1 × 1 = 1

2 Squared = 22 = 2 × 2 = 4

3 Squared = 32 = 3 × 3 = 9

4 Squared = 42 = 4 × 4 = 16

5 Squared = 52 = 5 × 5 = 25

6 Squared = 62 = 6 × 6 = 36

The squares are also

on the Multiplication Table: squares in times table

Negative Numbers

We can also square negative numbers.

Example: What happens when we square (−5) ?

Answer:

(−5) × (−5) = 25

(because a negative times a negative gives a positive)

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