Jeopardy!

Inverse Operations

100

What are the inverses of addition and multiplication?

Subtraction and division

200

Solve the following equation using inverse operations: 2+3y=11

2+3y=11 -2 -2 3y=9 3y/3=9/3 y=3

300

Define inverse operations.

"Undoing," working backwards, or retracing steps to return to an original value or position is referred to as using the inverse operation.

400

Pac-man is working on a math worksheet during class about inverse operations. He is stuck on the problem 36y=252. Help him solve the equation using inverse operations.

36y=252 36y/36=252/36 y=7

500

A man is selling sports equipment on a street corner. You walk up to him and buy 6 helmets for y dollars each. All together, you spend a total of $90. Write the equation, then solve for y.

6y=90 6y/6=90/6 y=15 You spend a total of $15.

Inverse Functions

100

Define inverse functions.

takes the output value, performs some operation(s) on this value, and arrives back at the original function's input value.

200

Give an example of an inverse function.

y=2x- inverse is x=2y

300

Is the Inverse of a function also a function?

No. The inverse of a function is always a relation but not necessarily a function.

400

What is the inverse of the function y = x + 22?

The inverse of this function is f^-1(x) = x -22

500

Daily Double: f(x) ={(33,14), (23,15), (11,12), (13,14 )} What is the inverse of this function?

f^-1(x) ={(14,33), (15,23), (12,11), (14,13)}

Inverse Relationships

100

What is the inverse of this problem? List 1. 10+15=25

25-10=15 or 25-15=10

200

Paul went to the market and bought 10 apples, 6 oranges, and 7 pears. How much fruit did Paul buy? Write the equation, and then all of it's inverse relationships.

10+7+6=23, inverses are 23-10-7=6, 23-10-6=7, 23-7-6=10

300

The inverse relationship of an equation is 36939-39-900-6000=30000. What is the original equation?

30000+6000+900+39=36939

400

Paula is looking at collections of bells she might like to purchase. She spots a collection that contains 7 gold bells, 3 silver bells, and 10 red bells. All together, its a total of 20 bells. Write the equation and it's inverse.

7+10+3=20, inverse is 20-10-7=3

500

The inverse of a problem is 123-20-15-70-3=15. What is the original problem?

20+15+70+3+15=123

Riddles

100

What month of the year has 28 days?

All of them.

200

What word is always spelled wrong?

Wrong.

300

What do you call a cow with only two legs?

Lean Beef.

400

You see me once in June, twice in November and not at all in May. What am I?

The letter e.

500

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Chicago (chi-ca-go).

2025 Trivia

100

This airline promised you a budget holiday and became viral on tiktok.

Jet2

200

At what concert was a ceo caught cheating on his wife?

Coldplay

300

This is how long titok was officially banned in the United States.

14 hours

400

This french art museum was robbed in broad daylight in October of 2025.

The Louvre

500

This company claims to have started the process of reviving extinct species like the direwolf and the wooly mammoth.

Colossal