Ratios and Proportions
In a box of pens, the ratio of red pens to blue pens is 3 to 2. What fraction of the pens are blue?
2/5 of the pens are blue.
(2/3) ÷ (3/4)
8/9
42-23=
8
What is the area of a triangle that is 6 cm high with a base of 8 cm.
24 cm2
What is the median test score in the following set?
95, 87, 72, 85, 93, 88, 88
88
A box of detergent cost $5.12 for 32 ounces. What is the unit price?
$0.16 per oz.
37282 ÷ 7
5326
Write the following as an equation:
Four less than double what number is 50?
2n-4=50
Find the volume of a rectangular prism that is 6 inches wide, 4 inches long, and 3 inches deep.
72 in3
What is the range of test scores in the following set?
95, 87, 72, 85, 93, 88, 88
23
If Jim feeds his dog 7 pounds of dog food in 14 days, how much does he feed his dog in 30 days?
15 lbs
1.54 ÷ 0.8
1.925
Use the distributive property to find an equivalent expression:
3(2 + x)
6+3x
Draw a figure with vertices at (0,2) (0,7) (4,2) and
(4,7).
(see student drawings)
What is the average test score in the following set? (round your answer to one Decimal place)
95, 87, 72, 85, 93, 88, 88
86.9
The library bought 135 books in one month. If 20% of those books were fiction, how many books bought that month were nonfiction?
108 books were nonfiction.
Find the greatest common factor (GCF) of 18 and 30.
6
The maximum height to ride the Baby Boats as Lagoon is 48 inches. Write this as an inequality, and show it on a number line.
h≤48
(see number lines)
Draw a figure with vertices at (-2,2) (3,2) and (0,0). What is the length of the line between (-2,2) and (3,2)?
Length=5 units
Draw a line plot (or dot plot) for this list of how many pages each student read.
4, 3, 5, 6, 6, 3, 4, 4, 5, 2, 6, 5, 3, 4, 5, 3
(see student work)
Use two unit multipliers to convert 3 m2 to square centimeters.
30,000 cm2
Use prime factorization to find the least common multiple (LCM) of 18 and 24.
72
Write an equation using d for distance and h for hours, that shows how far you will travel if you are moving at 65 mph.
65h=d
Draw the net of a rectangular prism with a length of 3 units, a width of 4 units, and a height of 5 units. Then calculate the surface area.
(You need the net and the surface area)
Net: (see student work)
Surface Area: 94u2
Make a box and whisker plot for the following data:
17, 29, 32, 9, 30, 14, 8, 39, 11, 32, 23
(see student work)