The bottom number in a fraction
Denominator
Area of a square or rectangle
A = bh
Simplify the fraction 4/12
1/3
divide both numbers by 4
Line the decimals up
There are 8 yellow skittles for every 16 red skittles in a bag. What is the ratio of yellow skittles to red skittles in each bag? Simplify as much as possible.
1 yellow skittle : 2 red skittles
A letter that represents an unknown or varying quantity
Variable
Area of a parallelogram
A = bh
Simplify the expression:
4x + x2 + 5x2 - x
6x2 + 3x
Name the whole number closest to 2.6
3
Concrete costs $40 for 5 pounds. What is the unit cost of concrete per pound?
$8 per pound
A number that is multiplied by a variable (comes in front of the variable)
Coefficient
Area of a triangle
A = bh ÷ 2
Simplify the expression:
3(2x2 + 6x - 5)
6x2 + 18x - 15
Find the sum of 2.35 and 4.2
without using a calculator
6.55
A car moves drives 210 miles in 3 hours. At the same rate, how far will it drive in 5 hours?
350 miles (at a rate of 70 miles per hour)
What we use to isolate a variable
Inverse operations
Perimeter of a square using only one variable
P = 4s
Simplify the expression:
7(2x +4y) - 6y
14x + 22y
Find the product of 6.2 and 4.15
without using a calculator
25.73
It costs $46.80 to fill a 13-gallon gas tank. What is the price of 2 gallons of gas?
$7.20
A number that tells you how many times to use the base in repeated multiplication
Exponent
Volume formula that uses only 2 variables
V = Bh
Simplify the expression:
x • x • x • x
x4
Find the quotient of 39 and 1.2
without using a calculator
32.5
What is the ratio of oranges to total fruit? Simplify as much as possible.
1:3