Revision Jeopardy

Number

100

Calculate:
-7 + 15 - 10

-2

200

Work out:
3/4 + 2/5

Give your answer as a mixed number.

1 3/20

300

Calculate:
6 + 18 ÷ √9 x (4 - 2)²

30

400

Write 0.375 as both a percentage and a fraction in its simplest form.

37.5% and 3/8

500

Calculate:
(3 x 10⁵) x (4 x 10²)

Give your answer in standard form.

1.2 x 10⁸

Algebra

100

Simplify:
6a + 4 - 3a + 2a - 7

5a - 3

200

Work out the value of:
2x² + 3x - 5
when x = 2.

9

300

Expand and simplify:
4(3x - 5)

12x - 20

400

Factorise:
36x + 42

6(6x + 7)

500

Solve the equation:
7(x - 1) = 2(x + 9)

x = 5

Ratio and Proportion

100

Write the ratio 8:12 in its simplest form.

2:3

200

Share £36 in the ratio 5:7.

£15, £21

300

The ratio of boys to girls in a year group is 3:5.
There are 24 boys in the year group.
How many girls are there in the year group?

40

400

y is directly proportional to x.
When x = 4, y = 10.
Work out the value of y when x = 10.

25

500

A recipe uses flour and sugar in the ratio 5:2.
If the recipe uses 3/4 kg of flour, how much sugar is needed?

Give your answer in grams.

300g

Geometry

100

A triangle has a base of 8cm and a perpendicular height of 6cm. Work out the area of the triangle.

24cm²

200

A cuboid is 4cm high, 3cm wide and 9cm deep.
Work out the volume of the cuboid.

108cm³

300

The longest side of a right-angled triangle is 13cm.
The shortest side of the triangle is 5cm.
Work out the length of the other side of the triangle.

12cm

400

A cuboid is 4cm high, 3cm wide and 9cm deep.
Work out the surface area of the cuboid.

150cm²

500

A right-angled triangle has a 30° angle.
The side opposite the 30° angle is 6cm.
Work out the length of the hypotenuse.

12cm

Probability and Statistics

100

Find the mean from the list:
8, 10, 4, 9, 6, 6, 6

7

200

The heights of 10 students are recorded in a stem-and-leaf diagram:
14|5 8
15|2 5 5 6 7
16|0 3 4
Key: 14|5= 145cm
Calculate the range of the students' heights.

19cm

300

A bag contains 6 red, 9 blue and 5 green counters.
A counter is chosen at random.
What is the probability the counter chosen is red?
Give your answer as a decimal.

0.3

400

A spinner is spun 40 times.
It lands on red 14 times.
Estimate the probability of the spinner landing on red.
Give your answer as a fraction in its simplest form.

7/20

500

A bag contains 4 red counters and 6 blue counters.

Two counters are taken out of the bag.
Calculate the probability that both counters are red.
Give your answer as a fraction in its simplest form.

2/15