This is a timed quiz. You will be given 60 seconds per question. Are you ready?
20% is equivalent to 20/100 or 0.2. You find 20% of 100 by multiplying 100 x .2 = 20
When adding or subtracting equations with variables, you keep the variable as a unit. Think of the variable xy as "apples", then the equation becomes 8 apples - 3 apples = 5 apples (or 5xy)
5 goes into 13 2 times with a remainder of 3.
The answer is (3 x 3 x 3) + (1 x 1 x 1) = 27 + 1 = 28
30 - (-4) is the same as 30 + 4 = 34
When multiplying fractions, multiply both the numerators and denominators. So, 5/8 x 2/6 = (5x2)/(8x6) = 10/48 which is 5/24 when simplified.
When adding fractions that have the same denominator (the number on the bottom), you simply add the numerators together and keep the denominator the same. So 2/9 + 3/9 = (2+3)/9 = 5/9
When subtracting fractions that have the same denominator (the number on the bottom), you simply subtract the numerators and keep the denominator the same. So 9/11 - 5/11 = (9-5)/11 = 4/11
