End of Year - Math Jeopardy

Scientific Notation

100

How do you write .03 in scientific notation?

3 x 10^-2

200

What is 3.2 x 10³ + 4.3 x 10³?

7.5 x 10³

300

What is 4 x 10^-3 x 11 x 10^-2?

4.4 x 10^-4

400

What is 6 x 10⁸ - 4.2 x 10⁵?

5.9958 x 10⁸

500

An airplane traveled at a speed of 5.7 × 10² miles per hour for 1.4 × 10¹ hours. How far did the plane travel?  

7.98 x 10³

Pythagorean Theorem

100

What is the longest side of a right triangle called?

Hypotenuse

200

A triangle has two legs: 3in and 4in. What is the 3rd side of the triangle?

5in.

300

A triangle has a leg of 12 and a hypotenuse of 15. What is the measurement of the missing leg?

9

400

The measurement of two legs of a triangle are 13 and 17. What is the measurement of the hypotenuse? Round to the nearest tenth.

21.4

500

The WBZ TV tower in Needham is almost 1300 ft. tall. One of the gude wires is 1900 feet long. It is attached to the tower 1200 ft. above the ground and is anchored to the ground. How far from the base of the tv tower is the guy wire attached to the ground? Round to the nearest tenth,

1,473.1 ft

Probability

100

What is the probability of rolling a 2 or a 5 on a fair die?

2/6 or 1/3

200

What is the probability of getting heads when flipping a coin and rolling an even number?

3/12 or 1/4

300

A jar contains 12 caramels, 7 mints and 16 dark chocolates. What is the probability of selecting a mint?

7/35 or 1/5

400

You have a jar of marbles in front of you with the following colors: 10 - red, 12 - blue, 2 - yellow and 6 - white. What are the odds of selecting marble that is not blue, replacing it and then one that is blue?

216/900 or 6/25

500

There is a jar of jelly beans with the following flavors: 12 are grape, 17 are blueberry, 8 are pineapple and 13 are coconut. What is the probability of selecting either a grape or blueberry replacing it and then a coconut or pineapple?

609/2500

Random Math

100

A store is having a 25% off sale. If a jacket originally costs $80, what is the final price of the jacket?

$60

200

What is the mean of the following numbers: 4, 7, 3, 8, 10, 4

6

300

A circular pizza has a radius of 9 inches. What is the area of the pizza in square inches? (Use 3.14 for pi)

254.34in.

400

Lily is saving up to buy a new smartphone that costs $550. She already has $150 saved. To earn the rest, she plans to babysit at $12 per hour. If she can only work in one hour increments, how many hours will she need to babysit to afford the phone?

34 hours

500

At a pizza party, cheese pizzas cost $15 each and pepperoni pizzas cost $18 each. The party host ordered 7 pizzas in total and spent $120. How many of each type of pizza were ordered?

2 cheese pizzas and 5 pepperoni pizzas

Final Jeopardy

400

A rectangle originally has a length of 20 m and a width of 10 m. If you increase the length by x meters and decrease the width by 5 meters, the new rectangle's area is exactly 40% of the original rectangle's area. What is the value of x?

x = -4