The Number System
Which is greater: -4 or -7?
-4 is greater, because it is closer to zero on the number line.
Write an expression for “5 more than a number x.”
x+5
Write the ratio of 3 apples to 5 oranges in three different ways.
3:5 , 3 to 5, 3/5
Name a 3D shape that has 6 faces, all of which are rectangles.
Rectangular prism
What is the mode of this data set: 6, 3, 2, 6, 4, 6, 5?
6
Write 0.25 as a fraction in simplest form.
1/4
Simplify: 3 × (2 + 4)
18
Are the ratios 2:3 and 4:6 equivalent?
Yes, because 2 × 2 = 4 and 3 × 2 = 6
What is the area of a rectangle with length 9 cm and width 3 cm?
27 cm2
Find the range of this data set: 10, 15, 7, 12, 5
15 - 5 = 10
A number is 4 units away from zero on the number line. What are the two possible numbers?
4, -4
Evaluate the expression: 2n + 5 when n = 4
13
A recipe uses 4 cups of flour for every 6 cups of sugar. If you use 10 cups of flour, how many cups of sugar would you need to keep the same ratio?
15
A rectangular prism has a length of 5 cm, width of 2 cm, and height of 3 cm. What is its volume?
30 cm3
A data set has a Q1 of 12 and a Q3 of 20. What is the interquartile range (IQR)?
20 - 12 = 8
What is the opposite of the number -8 on a number line?
8
Write an equation to represent: "Seven times a number is 42."
7 x = 42
If 3 notebooks cost $6, what is the unit price?
$2
Find the surface area of a cube with an edge length of 4 cm.
96 cm2
What is the median of this data set: 3, 7, 5, 9, 1?
5 (Ordered: 1, 3, 5, 7, 9)
A hot air balloon rises 15 feet, then descends 25 feet. What is the net change in altitude? Write your answer as a signed number.
-10
Solve the equation: 2x – 3 = 11
7
A car travels 180 miles in 3 hours. At the same speed, how far would the car travel in 7 hours?
420 miles
A rectangular prism has a length of 6 cm, width of 4 cm, and height of 3 cm. What is the surface area of the prism?
108 cm2
What is the mean of the data set: 4, 6, 8, 2?
5 (20 ÷ 4)