Fraction Operations
4/5+2/3-1 1/3
2/5
3-5+(-8)
-10
Place in decreasing order:
0.75, 1 2/3, -0.5, 3/5, -1 1/2
1 2/3, 0.75, 3/5, -0.5, -1 1/2
A circle has a diameter of 8 cm. Find the area of the circle.
50.24 cm2
x/2-4=10
x=28
1 1/2 +2 3/4-1 5/8
2 5/8
-5-(-8)-10
-7
There are 10 dogs and 15 cats in an animal shelter. What is the probability of a random person choosing a dog?
Write the answer as a percent.
40%
A circle has a circumference of 62.8 cm. What is the radius of the circle?
10
Carl has $35, which is five more than triple what Karla has. How much does Karla have?
Write an equation and solve it.
3k+5=35
k=10
1 3/4+1/2*1 1/2
2 1/2
(-2)*5+(-14)div(-2)
-3
5 out of 8 people who watched a video, "liked" the video. If 160 people watched, how many people "liked" the video?
100
A right triangle has shorter sides of 5 cm and 6 cm. What is the length of the longest side?
7.81 cm
4(x-6)+10=18
8
2 1/4div2/3-9/16
2 13/16
4-8*(-3)+(3-19)
12
A recipe asks for 3 cups of sugar and 180 chocolate chips. If you only have 2 cups of sugar, how many chocolate chips would you use to keep the ratio of sugar to chocolate chips the same?
120
A 10 meter long wire is attached 3 meters up a statue (from the ground) and then angled down towards the ground to provide support. How far away from the statue is the wire placed into the ground?
9.5 m
Giovanni gets his wallet stolen and loses $50, but then wins a competition that doubles the amount of money he has. He now has $600. How much did he have before his wallet was stolen?
Write an equation and solve.
2(g-50)=600
350
You flip two coins. You repeat this 40 times. How many times would you expect to flip at least one head?
30