Year 9 Std Maths - All Topics

Algebra Techniques

100

Simplify x + x + x

3x

200

Simplify 4x - 3y + 5x + y

9x - 2y

300

Simplify a² x a⁷

a⁹

400

Write x^-4 with a positive index

1 / x⁴

500

Expand (x + 2) (x + 5)

x² + 7x + 10

Area and Volume

100

Find the radius of a circle with diameter 11cm

5.5 cm

200

Find the area of a rectangle with side length 8cm and width 5cm

40 cm²

300

Find the area of a triangle with base 10cm and perpendicular height of 6cm

30 cm²

400

Find the volume of a cube with side length 5cm. 

125 cm³

500

Calculate the surface area of a cube with side length 3cm

54 cm²

Data & Probability

100

What is the probability of rolling a number less than 2 on a standard dice

1/6

200

There are 20 marbles in bag, half are blue, 4 are red and the rest are yellow. Find the probability of choosing a yellow marble. 

6/20 or 3/10

300

There are 30 students in a class. Everyone studies Art or Geography or both. If 20 students study geography and 16 students study Art, Find the probability that a student selected at random studies both subjects. 

6/30 or 1/5

400

Find the median of the data set:

{1, 3, 5, 5, 8, 9, 12, 14}

6.5

500

The letters from the word ALGEBRA are written on cards and a card is selected at random. Find the probability that the card drawn is a vowel. 

3/7

Equations

100

Solve x+8=25

x=17

200

Solve 4y = -32

x = -8

300

Solve 3x - 4 = 17

x=7

400

Solve x² = 36

x=6 or -6

500

Solve 2(x+3) = 14

x = 4

Teacher

100

Your teacher's first name

Natalia

200

How many teeth does Mrs Stephens have?

28

300

What is Mrs Stephens' favourite animal?

Meerkat

400

What year did Mrs S start job sharing with Mrs C? 

2017

500

How many calculators and rulers does Mrs Stephens' normally have in her work bag. 

3 calculators and 4 rulers