Ratios
PEMDAS
Fractions
Percents
Word Problems
100
Are 2 : 3 and 10 : 15 equivalent?
Yes
100
21 - 20 + 3 - 1 + 5
8
100
2/11
100
15% of 60
9
100
Seven less than six times the sum of five plus eight.
6 x (5 + 8) - 7 = 71
200
Reduce this ratio:
2 : 12
1 : 6
200
45 ÷ 5 x 3 x 6
162
200
5/6
200
45 is what percent of 150
30%
200
Felix has 12 red beads, and he has 6 fewer yellow beads than red beads. Felix also has 4 more green beads than red beads. How many beads does Felix have in all?
12 red + 6 yellow + 16 green = 34 beads
300
Divide $28 in the ratio 5 : 2 : 7
$10 : $4 : $14
300
(62 + 6) ÷ 7 - 3 + 7
10
300
7 3/5
300
160% of 33
52.8
300
A box has red marbles and blue marbles. The ratio of red marbles to blue marbles is 3:7. If there are 45 red marbles in the box how many blue marbles are in the box?
105 Blue marbles
400
Find the unknown value:
9 : y = 27 : 15
y = 5
9 : 5 = 27 : 15
400
92 + 7 − (43) × (3 − 3)
88
400
2/3 , 5/8 , 3/5, 1/6
400
60 is 120% of what number?
50
400
Liam went to the mall with the $50 he got for his birthday. He went to the music store and bought 2 CDs that cost $3.50 and $10. Then he went to the food court and bought a burrito that cost $7.35. After he went to a game store and bought a board game that cost $20.13. As he was leaving the mall he saw a book that cost $9.60. Can he afford the book?
No.
$3.50 + $10 + $7.35 + $20.13 = $40.98
He only has $9.02 left.
500
The average length of a Rattlesnake is 6 feet and the average length of a Copperhead snake is 30 inches. What is the ratio of the length of the Rattlesnake to the length of the Copperhead snake? Reduce the ratio to its lowest term.
72:30
Reduced: 12:5
500
Gabe is a new car sales manager. He started on the first day of February. The previous sales manager kept strange notes to count how many cars he had on his lot. Gabe needs to determine the number of cars on the lot. The starting count of cars in January was 124. 42 less than 4 times that amount of cars were delivered to the dealership in January. 13 cars were returned by customers and 5 of those cars were donated to charity.
How many cars are on the lot?
124 + (4 x 124 - 42) + (13 - 5)
586 cars
500
18.75 minutes
500
A laptop that normally costs $600 is offered at a discount of 35%. What is the new sale price?
$390
500
Siblings Francis, Philip, and Eleanor decided to make money clearing snow. Philip shoved the snow off the driveways, Francis cleared the snow off the cars, and Eleanor supervised while sitting on a lawn chair drinking hot cocoa. They decided to divide their earnings based on how much work they did. The ratio of earnings for Francis, Philip, and Eleanor was 3:5:1. If they made $180 in one day, how much money did each sibling get?
Francis: $60
Philip: $100
Eleanor: $20