Operations with Rational Numbers
What is −8+13?
5
7x
A recipe uses 2 cups of flour for 3 cups of sugar. What is the ratio of flour to sugar?
2:3
In a right triangle, which side is represented by c in a2 + b2 = c2?
Find the perimeter of a rectangle with length 8 cm and width 5 cm.
26 cm
What is −7−12?
-19
Solve: x + 9 = 17
x = 8
If notebooks cost $10, what is the unit rate?
$2 per notebook
Find the hypotenuse when the legs are 3 and 4.
5
Find the area of a rectangle with length 12 m and width 7 m.
84m2
What is 3/4 + 1/2?
5/4 or 0.75
Evaluate 4a - 3 when a=5
17
Solve the proportion x/4 = 6/8
3
Find the hypotenuse when the legs are 5 and 12.
13
Find the circumference of a circle with radius 7 cm to the nearest cm. Use pi key or pi = 3.14
44cm
What is (-5)(-9)+3
48
Solve: 3x-7=20
x = 9
A car travels 180 miles in 3 hours. What is its average speed?
60mph
A right triangle has a hypotenuse of 10 and one leg of 6. Find the other leg.
8
Find the volume of a rectangular prism with dimensions 4 m, 3 m, and 5 m.
60m3
What is (-15) divided by 3/5?
-25
Solve the inequality 2x + 5 < 17
x < 6
If 8 pencils cost $3.20, how much do 15 pencils cost?
$6.00
A ladder is 15 feet long and reaches 12 feet up a wall. How far is the base of the ladder from the wall?
9 feet
Find the surface area of a cube with side length 6 cm.
216cm2