Ratios & Proportions
What is a ratio?
A ratio is a comparison of two quantities.
What is the first operation to perform in a mathematical expression?
parentheses (Brackets)
What is the goal when solving a one-step equation?
Isolate a variable
What does the symbol ">" mean in an inequality?
greater than, more than
What does GCF stand for and how is it calculated?
Greatest Common Factor
Find the common factors of the given numbers and find the greatest number among them.
Solve: 3/x =2/3
4.5
Evaluate: 5 + 3 x 2
11
Solve: x + 5 = 12
x=7
Solve: 2x < 10
x<5
Find the GCF of 12 and 18
6
If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to the total ingredients in simplest form?
2:5
Solve: 12 ÷ 4 + 2 x 3
If 4 times a number is 20, what is the number?
4x=20
x=5
If 3 times a number is at most 15, what are the possible values for the number?
Give 2 numbers.
Any number less than or equal to 5.
What does LCM stand for and how is it calculated?
Least Common Multiple
Find the multiples of the given numbers and find the least among them.
If you have 4 red marbles and 6 blue marbles, what is the ratio of red to blue marbles?
2:3
Calculate: 82 - (2 + 1) x 3
55
Mei ran 30.8 miles less than Kim last week. Mei ran 17.3 miles. How many miles did Kim run?
48.1 miles
Determine if the following is true or false: 5 + 3 ≥ 2 x 4
True
Calculate the LCM of 4 and 6
12
If a bicycle travels 60 miles in 3 hours, what is the ratio of miles to hours?
20:1
Simplify: 23 + 2 x (5 - 3)
12
Asanji wants to buy a wagon for $93.26. He gives the cashier $100. How much change does he rece
6.74
If 2y > 10, what is a possible value for y?
Any value greater than 5
What is the LCM of 5,6,8
120