Yr 8 - Term 3 Review

Number Ninjas

100

What is 8×7?

56

200

Calculate 3³

27

300

Calculate 48÷6+7

15

400

Simplify  18/24 

3/4

500

Calculate 2⁴+3²×2

34

Algebra Attack

100

Solve x+5=12

x=7

200

Solve 2x=18

x=9

300

Solve 2x+3=15

x=6

400

Simplify a³×a⁴

a⁷

500

Simplify (x³)⁴

x¹²

Geometry Gurus

100

How many degrees are in a right angle?

90°

200

Find the perimeter of a rectangle 8 cm by 3 cm.

22 cm

300

A triangle has angles 50° and 60°. Find the third angle.

70°

400

A right-angled triangle has shorter sides of 6 cm and 8 cm. Find the hypotenuse.

10 cm

500

A right-angled triangle has a hypotenuse of 13 cm and one shorter side of 5 cm. Find the missing side.

12 cm

Ratio & Rates

100

Simplify 4:6

2:3

200

3 scoops need 750 mL of water. How much water does 1 scoop need?

250 mL

300

Share $40 in the ratio 1:3

$10 and $30

400

5 movie tickets cost $75. What is the cost per ticket?

$15 per ticket

500

Cereal A costs $6 for 500 g. Cereal B costs $8 for 800 g. Which is the best buy?

Cereal B ($1.00/100 g vs $1.20/100 g)

Random Maths

100

How many minutes are in 2 hours?

120 minutes

200

Convert 2.5 L to mL.

2500 mL

300

A car travels 180 km in 3 hours. Find its average speed.

60 km/h

400

A $60 item is reduced by 25%. What is the sale price?

$45

500

A car travels 150 km in 2 h, then 120 km in 1.5 h. Find its average speed for the whole trip.

270÷3.5≈77.1 km/h

Data Detectives

100

Find the mode: 2, 3, 3, 4, 5.

3

200

Find the range: 4, 8, 10, 12, 15.

11

300

Find the mean: 4, 6, 8, 10.

7

400

Find the median: 3, 5, 7, 8, 12, 15.

7.5

500

The mean of 5 scores is 8. Four scores are 5, 7, 8 and 9. Find the fifth score.

11

Money Maths

100

You have $20 and spend $7. How much is left?

$13

200

A $50 shirt is 20% off. How much is the discount?

$10

300

A $60 item is reduced by 25%. What is the sale price?

$45

400

4 drinks cost $14. What is the cost of one drink?

$3.50

500

Shoes cost $120. They are reduced by 30%. What is the sale price?

$84

Maths Riddles

100

How many months have 28 days?

All 12

200

I am an odd number. Remove one letter and I become even. What number am I?

Seven

300

If 2 is company and 3 is a crowd, what are 4 and 5?

9

400

Two fathers and two sons go fishing. They catch 3 fish and each person gets one. How is this possible?

There are only 3 people — grandfather, father and son

500

Using only addition, how can you add eight 8s to make 1000?

888+88+8+8+8=1000