Show:
GCF/LCM
Ratios
Rates
Better Buy/Better Rate/Equivalent Ratios
Spiral Review
100
Find the LCM of 6 and 12
12
100
There are 8 green skittles, 2 purple skittles, 3 yellow skittles, 5 red skittles, and 2 orange skittles. Find the ratio of purple to green skittles in simplest form.
1:4
100
What is a unit rate?
A rate with denominator of 1. Example: 30 miles per hour
100
Are they equivalent? 200 words typed in 4 minutes 180 words types in 5 minutes
No, they are not equivalent.
100
Without a calculator: 10.45 + 2.1
12.55
200
Find the GCF of 36 and 72
36
200
There are 8 green skittles, 2 purple skittles, 3 yellow skittles, 5 red skittles, and 2 orange skittles. Find the ratio of purple to total skittles in simplest form.
1:10
200
Jack drove 420 miles in 7 hours. How many miles per hour was Jack driving?
60 miles per hour
200
Which is the better buy? 2 hamburgers for $8 or 5 hamburgers for $24
2 hamburgers for $8
200
Convert 45% to a decimal.
0.45
300
Frankie said the GCF of 6 and 18 was 18. Anthony said the GCf of 6 and 18 was 6. Who is correct?
Anthony is correct!
300
To make 24 chocolate chip cookies you need 2 cups of flour. How many cups of flour will you need to make 60 cookies?
5 cups of flour
300
12 lbs of apples cost $6. How much will 10 pounds of apples cost?
$5
300
Find the better buy. 20 comic books for $100 or 12 comic books for $48
12 comic books for $48
300
Convert 1/8 to a percent.
12.5%
400
Mr. Jones receives his community newsletter every 5 days. He receives his subscription to the Wall Street Journal every 7 days. If he received both today, in how many days will he receive both newsletters?
35 days
400
The ratio of boys to girls in Molly's class is 4:5. If there are a total of 27 students in her class, how many are boys and how many are girls?
12 boys and 15 girls
400
Sarah bought 3 concert tickets and spent $72. If Mike bought the same concert tickets and spent $120, how many tickets did Mike buy?
5 tickets
400
Lauren took 12 hours to read a 360 page book. Joey took 14 hours to read a 400 page book. Who is reading at a faster pace?
Lauren is reading at a faster rate.
400
Marie read 55% of her book. If the book has 300 pages, how many has she read?
She had read 165 pages.
500
Chris has 12 blue balloons, 16 red balloons, and 36 white balloons. If he wants to split the balloons up into identical groups, what is the most amount of groups he can make?
4 groups
500
Pat wants to enter a typing contest. In order to enter, one has to be able to type 50 words per minute. Pat took 15 seconds to type 10 words. Can he enter the contest?
No! There are 60 seconds in a minute so 15 x 4 = 60 so 10 x 4 = 40 Pat is able to type 40 words per minute which is less than the amount needed to enter.
500
Gary drove 300 miles in 5 hours. If he continues at the same speed, how far will he be able to travel in 7 hours?
420 miles
500
Ashley needs to ride her bike to her friend’s house 96 miles away. She is riding at an average rate of 15 miles per hour. She has 6 hours to get there. Will she make it?
No she will not make it. Traveling at this speed she will be able to go 90 miles in 6 hours which is not enough.
500
Danielle bought a dress on sale for 20% off and saved $15. How much was the original price of the dress?
$75