8th Grade Math Jeopardy

Number, operations, and Quantitative Reasonin

100

There is a square with an area of 190 square inches. The number of inches of each side of between these two whole numbers —

What is 13 and 14

200

Mr. Hines paid $8.40 for an international phone call. He paid a fee of $1.25 plus $0.55 per minute. This is an equation can be used to find x, the length of the call in minutes?

What is 0.55x + 1.25 = 8.40

300

Fred pays the same amount of property tax each month. His total property tax for the year is $1,545. This is his monthly tax payment in dollars and cents?

What is $128.75

400

Lucy reads 450 words in 3 minutes. This is an equation that can be used to find w, the number of words Lucy can read in 20 minutes if she continues to read at the same rate?

What is w = (450/3)*20

500

There is a discount of 18% off at Best Buy. If an iPad originally cost $1350, what would the equation be that would show the sale price (price after discount).

1350 - (1350*0.18)

OR

1350*0.82

Patterns, Relationships, & Algebraic Thinking

100

Solve for n:

4n - 6 = 3n + 2

n = 8

200

Caroline used the following formula to determine t, the sales tax on p, the dollar amount of a customer’s total purchase at the candle shop where Caroline works. t = 0.0825p A customer bought a box of red candles for $15 and 2 scented candles for $20 each. This is the sales tax on the customer’s purchase (rounded to the nearest cent)?

What is $4.54

300

Ashley's mother bought some bottles of juice for her family. The juice was on sale for 3 bottles for $4.50. This is how much Ashley's mother spent for 8 bottles of juice?

What is $12

400

A store’s records showed that during a one-month period, 3 gallons of milk were sold for every 2 boxes of cereal sold. If 2,864 boxes of cereal were sold that month, this is the number of gallons of milk that were sold?

What is 4,296 gal

500

Solve for x.

3(x + 4) - 13 = 9(x - 3)

4.3333333

or

4 1/3

Geometry and Spatial Reasoning

100

A rotation can be described by these two things?

What are a center point and angle/degree of rotation?

200

Describe a transformation. (give at least two descriptive components)

What are direction, distance, slide, no change in orientation

300

This is what it is called when a shape is flipped over the x or y axis.

What is reflection?

400

The Texas Star, at Fair Park in Dallas, is the largest Ferris wheel in the western hemisphere. It has a diameter of 65 meters. This is the approximate distance traveled by a person who rides this wheel for one complete revolution.

What is 204 m?

500

This is the coordinate where the point (-6,-4) lies after a reflection over the x-axis.

(-6, 4)

Measurement

100

The area of square ABCD is 400 square centimeters. What is its side length? (include units!)

20 cm

200

Matt's father has a computer desk in his study. The desktop is 60 inches long and 24 inches wide. Matt's father wants to build a proportionately smaller replica of his desk for Matt to use in his bedroom. If the length of Matt's desktop will be 45 inches, then this will be the perimeter?

What is 126 in ?

300

A plastics company makes two sizes of recycling bins in the shape of rectangular prisms. The smaller bin has a volume of 500 cubic inches. The length, width of the bin are 5 inches. What is the height? (include units)

What is 20 inches

400

If triangle ABC has a base of 20 ft and area of 400 square feet, this is the height.

What is 40 ft?

500

The floor of a room measures 12 feet by 10 feet. The room has 9-foot ceilings. The walls of the room are to be painted. This is the area to be painted.

What is 396 ft² ?

Pythagorean

100

What is the name of the longest side of a right triangle? 

hypotenuse

200

What is the formula for the Pythagorean theorem?

a²+b²=c²

300

the legs of the right triangle measure 3in by 4in. What is the length of hypotenuse?

5 in

400

A right triangle has a hypotenuse length of the square root of 63 ft and one leg that has a length of 4 ft. What is the exact length of the other side length?

What is the square root of 47

500

There is a triangle with side lengths of 34, 12, and 26. Is it a right triangle? How do you know?

No, because 12 squared plus 26 squared is not 34 squared.