Answer:
1. Square Numbers:
To find the square of a number, you just multiply it by itself,
so:
a. 4 squared = 4 x 4 = 16
b. 12 squared = 12 x 12 = 144
c. 7 squared = 7 x 7 = 49 (Remember the rule that a minus
x
a minus gives a positive number)
2. Square Roots:
These are the opposite of squares, so you are looking at the
two numbers that when multiplied together give you the number
you start with. A number can have both positive and negative
square roots. (Remember the rule that a minus x a minus
gives a positive number)
a. Square roots of 64 are +8 and 8. (8 x 8 = 64 and 8 x 8
= 64)
b. Square roots of 121 are +11 and 11
c. Square roots of 0.25 are +0.5 and 0.5
d. Square roots of 100 are +10 and 10
3. Cube Numbers:
To find the cube of a number, multiply the number by itself and
then by itself again, so:
a. 3 cubed = 3 x 3 x 3 = 27
b. 5 cubed = 5 x 5 x 5 = 125
c. 7 cubed = 7 x 7 x 7 = 343 (Watch these  when you square
two negative numbers it becomes positive, but when you multiply
by another negative, it becomes negative again.)
