Perfect square A perfect square is the square of an integer, You should know all of them and their square roots 1^2=1, 2^2=4, 3^2=9, 4^2=16, 5^2=25, 6^2=36, 7^2=49, 8^2=64, 9^2=81, 10^2=100
Fractions- adding multiply divide
Fractions have a numerator and denominator. Divide the numerator by the denominator to get decimal equivalent
Add fractions by finding a common denominator, then cross multiply
Subtract fractions the same way
Compound fractions like a stack of three or more, work from the bottom up and stack up every other