Year 10 Jeopardy!

Calculations

100

28 x 13

364

200

45.1 - 23.5

21.6

300

468 divided by 3

156

400

1/3 + 2/6

Simplify your answer

2/3

500

Jim thought of a number. He doubled it and added nine. The answer was forty nine. What number did he think of?

20

Algebra

100

Simplify

6a x 5a

30a²

200

Expand

3(2x + 1)

6x + 3

300

Simplify
3x + 2y - 4x + y

-x + 3y

400

Solve 

3x + 15 = 45

x = 10

500

Solve

 3x + 10 = x - 5

x = -7.5

Formulas

100

What is the formula for area of a rectangle?

A = b x h

200

What is the formula for area of a triangle?

A =  1/2 x b x h

300

What is the formula for Pythagoras theorem?

a² + b² = c²

400

What is the formula for speed of an object?

Speed = distance/time

500

What is the formula for circumference of a circle?

C = pi x d

Probability

100

I have a bag with 10 red balls and 5 green balls. What is the probability of choosing a red ball?

10/15 or 2/3

200

What is the probability of rolling an even number on a dice?

3/6 or 1/2

300

23 pens are red

17 pens are blue

10 pens are green

I pick a pen at random. What is the probability of not picking a green?

40/50 = 4/5

400

The probability of Barry winning a football game is 0.3.
The probability of Barry drawing and losing the game is equal. Work out the probability of Barry drawing the game.

0.35

500

Here are some numbers:

1, 5, 8, 2, 8, 3, 2, 10, 25, 4

I pick a number at random. What is the probability of picking a prime or square number in its simplest form?

3/5

Percentages

100

Write 1/4 as a percentage.

25%

200

Work out 20% of $60

$12

300

Decrease £360 by 15%

£306

400

Jenna got 36 out of 90 on a maths test. Work out this score as a percentage.

40%

500

£2000 is invested into a bank, paying 3% compound interest. Work out the value after 4 years.

£2251.02