Year 8MA1 Term 1

Fractions

100

Convert 0.25 to a simplified fraction

1/4

200

Convert 3/5 to a decimal

0.6

300

Write 35% as a decimal and a simplified fraction

0.35 and 7/20

400

Convert 2/3 to a decimal. 

0.666...

500

Arrange in ascending order

0.5, 3/5, 55%

0.5, 55%, 3/5

Percentage increase and decrease

100

Find 20% of 50

10

200

Increase 80 by 10%

88

300

A shirt costs $60 and is discounted by 15%. What is the sale price?

51

400

A population of 800 increases by 10%, then decreases by 10%. What is the final population?

792

500

An item costs $130 including 10% GST.

Find the price before GST.

$118.18

Algebra

100

Simplify: 3x+5x

8x

200

Evaluate 2x+3 when x = 4

11

300

Expand: 3(x+5)

3x+15

400

Factorise 18a+12

6(3a+2)

500

Expand and simplify 

2(3x+4)−(x−5)

= 6x+8-x+5

=5x+13

Percentage problems

100

Increase 200 by 8%

216

200

Decrease 150 by 20%

120

300

A phone costs $500. It is increased by 10%, then discounted by 10%. Final price

500×1.1=550
550×0.9=495

400

A price increases by 25% to $250. What was the original price

250÷1.25=200

500

A shop buys a pair of shoes for $80 and sells them for $100. What is the percentage profit?

percentage profit 25% 

Trivia

100

What is the only even prime number?

2

200

Which planet is known as the Red Planet?
 

Mars

300

How many hearts does an octopus have?

3

400

What gets wetter the more it dries?

A towel

500

What number do you get when you multiply all the numbers on a phone keypad?

0