8th grade jeopardy

positive & negative numbers

100

-12+(-22)

-34

200

-63+(-12+2)

-73

300

24+17-(-12+29)

24

400

As Ashley prepared for her daily sledding practice, she heard on the radio that the temperature was 23 degrees below zero. After a long day of sledding she saw that the temperature was now 3 degrees. By how many degrees had the temperature increased?

26

500

Michael was scuba diving 37 meters below sea level when he spotted a beautiful fish below. To take a proper photograph, Michael dove 31 meters until he was level with the fish, staring into its eyes. Where was the fish relative to sea level?

-68

linear equations

100

Evaluate the following expression when x=4: 4x+6

22

200

Simplify the following expression: 6t−2t+20

4t+20

300

Solve for k: k+27=19

-8

400

If a+b+c=10 and x+y+z=−1, what is 3a−7z+3c−7y+3b−7x?

37

500

Which expressions are equivalent to 6l+5m−3n ? -3n+6l−5m -5l+3(m−2n) -3(2l−n)+5m

-3(2l−n)+5m

long division

100

4/112

28

200

8/400

50

300

5/315

63

400

9/598

66R4

500

9/692

76R8

system of equations

100

find x and y : 5x-6y= -32 3x+6y= 48

x = 2 y = 7

200

Solve for x and y using elimination. x−4y=−7 −x+5y=10

x= 5 y= 3

300

Solve for x and y using substitution. −2x−2y=−10 x=−4y+2

x= 6 y= -1

400

Sebastian bought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of $12.50. Patricia bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of $8.50. What is the cost of one slice of mushroom pizza?

One slice of mushroom pizza costs $2.00

500

Nick has a collection of grasshoppers and butterflies. He has 561 insects in all. The number of grasshoppers is twice the number of butterflies. Find the number of each type of insect that Nick has

There are 187 butterflies and 374 grasshoppers.

function

100

x y 0 2 5 0 ? −8 35 ?

x y 0 2 5 0 25 −8 35 -12

200

If x⊕y=x2−3y2, find −2⊕3.

−23.

300

A car rental charge is $100 plus $0.30 per mile traveled. Determine the equation of the line that represents the cost by the number of miles traveled.

y = 100 + 0.3x

400

If x†y=x(y−5), find −5†0.

25.

500

The function f(x) is defined as f(x)=x2+25−−−−−−√ Find the value of f(12). What is the value of x in this problem?

f(12)=13