8th Grade Math Jeopardy

Word Problems

100

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

200

Lucy reads 450 words in 3 minutes. Find the simplified 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. Find the total words. 

Equation: w=150t
In 20 minutes: 3000 words

300

A hydrogen molecule is 1.5x10¯¹º meters in length. This is that number in standard notation?

What is 0.00000000015

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

This is an equation that matches the following statement. Six less than four times a number is two more than three times that number.

What is 4n - 6 = 3n + 2

Algebra

100

2x+5=-17

x=−11

200

-5x+2=3x-10

x=3/2

300

4(x+2)=-2x+16

x=4/3

400

1/4(x+8)= -3

x=−20

500

1/3(x+2)=1/2(x+12)

x=−32

Geometry or Statistics

100

Find the median: 13, 2, 5, 7, 32, 17

Median = 10

200

Which measure is best when there is an outlier?

Median

300

During the past winter, the Bender family had monthly heating bills of $79, $146, $212, $149, and $212. This is the mean, meadian, mode, and range.

What are... Range: $133, Mode: $212 Median: $149 Mean: $159.60

400

A school committee conducted a survey to find out whether teachers would prefer to start the school day 30 minutes later. Only teachers with children in preschool were surveyed. This is the reason why the results of this survey might NOT be a valid representation of what all the teachers at the school would prefer?

What is "The survey was not conducted using a random sample of teachers, so it could be biased."

500

Find the IQR of the data set:
12, 3, 15, 7, 9, 5, 13, 8

IQR = 6.5

Fractions, Decimals, Percents

100

What is .03 as a fraction in simplest form?

3/100

200

What is 3/8 of 72

27

300

27 is what percent of 36?

75

400

What number is 35% of 80?

28

500

A price increases from $48 to $66. What is the percent increase?

37.5% increase

Linear Relationships

100

A gym charges a $10 sign-up fee plus $15 per month. What will the total cost be after 6.5 months?

$107.50

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

Find the slope between (2, 3) and (4, 7)

2

400

A line passes through (2,5) and has slope 3. Write the equation.

y=3x−1

500

Find the equation of the line through (0,4) and (2,8)

y=2x+4