Ratios/Rates
Proportions
Unit Rates
Scale Factor
Miscellaneous
100
In a drawing, there are three circles, four stars, and three triangles. It is the ratio of stars to the total number of shapes.
What is 2/5?
100
It is the missing number in the proportion: 5/8 = n/48
What is n=30?
100
My family traveled 300 miles in 5 hours. What is my unit rate?
What is "proportional?"
100
The scale factor for a map is 1 cm. = 200 km. On the map, Boston is 1.5 cm. from New York. How far is Boston from New York?
What is 300 km.?
100
It is the GCF (greatest common factor) of 12, 20, and 36. Hint: What is the largest number that 12, 20 and 36 is divisible by?
What is 4?
200
Ari can walk 2 miles in 40 min. It is the amount of time it will take him to walk 4 miles.
What is 80 min.?
200
Five shovels of sand are mixed with 4 shovels of gravel to make cement. It is the number of shovels of gravel needed for 45 shovels of sand.
What is 36?
200
I earned $105
What is 4 cm.?
200
Jeff drew a model of an airplane with a wing of 5 in. He used a scale of 1 inch: 5 feet. Find the actual length of the wing.
What is 25 ft.?
200
Willy is 28 in. tall. His brother Carlos is 2 1/4 times as tall. Estimate the height of Carlos.
What is "63 in."?
300
Paul used 6 black tiles and 12 white tiles for a pattern. It is the ratio of black tiles to white tiles.
What is 1:2?
300
Thirty buses can carry 1500 people. It is the number of people that can be carried by 5 buses.
What is 250?
300
A 4-ft. tall mailbox casts a 2-ft. long shadow. If the shadow of a nearby tree is 16 ft. long, find the height of the tree.
What is 32 ft.?
300
In a picture, a snake measures 4 in. long. The scale is 1 in. = 2 ft. Find the actual length of the snake.
What is 8 ft.?
300
Give the prime factorization of 90. What prime numbers do you multiply together to equal 90?
What is 2 x 3 x 3 x 5?
400
The equation "t = 6.2h" gives the time in hours, "t", that a candle will burn if the candle has a height in inches of "h." It is the time that a 4-inch candle will burn.
What is 24.8 hrs.?
400
Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. It is the number of crates that 8 trucks can carry.
What is 320?
400
Triangle ABC has side AB = 31.5 cm. and side AC = 24 cm. Triangle DEF has side DE = 10.5 cm. and side DF = 8 cm. Determine if the two triangles are similar.
What is "they are similar since corresponding sides are in proportion"?
400
Two towns are 20 miles apart. On a map with the scale 1 inch = 40 miles, how many inches apart are the towns?
What is 1/2 in.?
400
Give the equivalent decimal form of 5/20.
What is 0.25?
500
The equation "d = 55t" gives the distance in miles, "d", that a car can travel in "t" hours. It is the time it takes to drive 247.5 miles.
What is 4.5 hrs.?
500
It is the missing number in the proportion: 6/8 = n/20
What is 15?
500
Two rectangles are similar. The smaller rectangle has a length of 8 cm. and a width of 6 cm. The larger rectangle has a width of 9 cm. and a length of ______cm.
What is 12?
500
On Fiona's map, the distance from her office to her house measures 3.5 in. The map scale is 1 in. = 16 mi. If Fiona drives back and forth, how many total miles will her round trip be?
What is 112 miles?
500
The expression 2n - 3 gives the number of tiles in row "n" of a pattern. How many tiles are in row 7?
What is 11?
M
e
n
u