Revision Jeopardy

Number

100

Estimate

58.8 x 20.9

    101.4

12

200

2²  x  2³  = .....

2⁵ = 32

300

Stuart buys 72 packets of crisps at 19p each. Estimate the total cost.

1400p  OR  £14

400

Show the inequality  x <  5  on a number line

(Confirm answer drawn with teacher)

500

List the following numbers in ascending order:

6.3 x 10¹

9.2 x 10³

7.4 x 10³

6.3 x 10¹  =  63

7.4 x 10³  =  7400

9.2 x 10³  =  9200

Graphs

100

It takes a gardener 3 hours to plant 20 flowers, how many flowers could 6 gardeners plant in 3 hours?

120 flowers

200

A car drives 120 miles in 3 hours. Calculate the average speed, in mph, of the car.

40 miles per hour

300

It takes 2 decorators 5 days to paint a house, how long would it take 4 decorators to paint the same house? 

2.5 days

400

Complete a table of values for:

y = 2x + 4

(For values of x from -1 to 3)

x   -1   0   1   2   3

y    2   4   6   8   10

500

How do you calculate the gradient of a straight-line graph?

Change in y-coordinate

Change in x-coordinate

Algebra

100

Rearrange to make d the subject:

e = d + 5

d = e - 5

200

Rearrange to make w the subject:

y = 3w - a

w = y + a

         3

300

Solve:   y - 6 = 2

              2

y = 10

400

James is selling 6 cupcakes for £5

Maddie is selling 4 cupcakes for £3.50

Which is better value?

James's offer is better value

(James £10 for 12 cupcakes)

(Maddie £10.50 for 12 cupcakes)

500

Find the nth term of the sequence:

3, 5, 7, 9, ...

2n + 1

Geometry

100

Calculate the circumference of a circle with a diameter of 6cm (to 1dp)

18.8cm

200

Calculate the area of a circle with a diameter of 6cm (1dp)

28.3cm²

300

Calculate the surface area of a cuboid with dimensions 2cm by 4cm by 6cm 

88cm²

400

Calculate the area of a semi-circle with a radius of 4cm (1dp)

25.1cm²

500

Find the perimeter of a circle sector with a radius of 5mm and an angle of 30^o at the centre (2dp)

16.54mm

Pot Luck

100

Calculate the length of the hypotenuse on a right-angled triangle, with other side lengths of 8cm and 6cm

10cm

200

An apple weighs 85g to the nearest gram

Give the error interval (minimum and maximum weight) for the apple

More than or the same as 84.5g

Less than 85.5g

300

Calculate the surface area of a cylinder with dimensions:

Height  10mm

Radius  5mm 

70 pi

OR

219.9mm²

400

Simplify:

x⁴ + y³ + x² - y + z⁵

x⁶ + y² + z⁵

500

Find the nth term of this sequence:

12, 9, 6, 3, ...

Then find the 100th term of this sequence:

nth term  =  -3n + 15

100th term = -285