Math Review Jeopardy.

Percent

100

the percent value of 1 over 2 

50%

200

the percent value of 2/4 + 5/8

7/8 = 87.5%

300

the fraction for 66%

2/3

400

A bag of chips is $2.99 on the shelf, sales tax in Saskatchewan is 11%. How much will the chips actually cost you? 

$3.32

500

A store owner gets a TV from the factory for $1500 but sells it for $3200 dollars, what is their profit from each TV and the the percent value of the markup they made. 

 $1700 profit and 47% markup

Closest without going over

100

How much does a cloud weigh?

1,000,000 tonnes

200

Giraffes are how many times more likely to be

30 more times 

300

The height of the Burj Khalifa, the worlds tallest building (in meters)

828

400

How many ants are there per person on Earth?

25 Million per person = 20 quadrillion total

500

The distance to Alpha Centauri (our closest star after the Sun) in km

9.44 Trillion km

Integers

100

Rewrite and solve -81 + (-15)

-96

200

Solve -65 x 15

-975

300

Rewrite and solve -2 + -8 - (-12)

2

400

The temperature in a potter’s kiln dropped 760 degrees in 4 hours.  How much did the temperature drop per hour?

-760/4 = -190 degrees and hour

500

You pilot a submarine and it plunges 36 meters every 5 minutes. What is your distance from sea level 30 minutes? What is your speed in km/h? 

-216 meters after 30 minutes so:

-432 meters after 60 minutes 

-432 meters per hour /1000 meters per km = -4.32 km/hour 

Pre Algebra Simplifying

100

Simplify

4(2-3) + -10(5+2) 

(8-12)+(-50+(-20))

-4 + (-70)

-74

200

3(2x+3x²) - 4x

2x+3x² 

300

3x(2y + 10z) - (2x)(5y) 

30xz - 4xy

400

2(5x² * 3x³⁾

60x⁵

500

2y²(3x⁵ + x⁵)

 __________

x²(4y) 

2x³y 

Pre Algebra Solving

100

5x = 250

x = 50

200

12x - 2 = 26

x = 2

300

3(2x - 4x)+7 = -5

x = 6 

400

 Four times a number decreased by six is at most thirty. Find the number.

4x - 6 = 30 

4x = 36

x = 9

500

Consider the information below:

A river will over flow and flood the town if it rises more than 33 feet. 

The river rose 8 feet after it snowed 24 feet at the mountain top. The next day the same river rose 4 feet after it snowed 12 feet.

A third measurement was taken after a 36 foot snowfall and it was found that the river rose another 12 feet.

If it snows 29 feet do you need to evacuate the town?

8+4+12 = 24 feet of rise so far

33 - 24 = 9 feet left 

3x = y because:

 3(8) = 24, 3(4) = 12 and 3(12) = 36 

so:

3x = 29 

29/3 = 9.66

x = 9.66, yes if it snows 29 feet the town will flood.