Algebra
x = 5 - 2
x = 3
3/8 + 1/8
1/2
Five words to describe likelihood
Impossible, Unlikely, Even, Likely, Certain
1/4 as a percentage
25%
x - 4 = 5
x = 9
4 3/5 as a vulgar fraction
23/5
Fractions, percentages and decimals
20% of 25
5
5x = 15
x = 3
7/3 - 3/4
19/12
The probability of all mutually exclusive events must equal this number
1
27 out of 36 students in a class passed their maths test. Show as a percentage.
75%
x / 4 = 9
x = 36
8/5 x 11/8 as mixed fraction
2 1/5
The probability that it will rain, when there is a 60% chance it won't rain
40%
Grace scored 65% on a test. The test was marked out of 60. This is how many marks she got.
39 marks
3x + 2 = 20
x = 6
6/7 divided by 6/4
8/14
A bag has 1/3 red balls, 1/2 blue balls and the rest are green. This is the probability of picking a green ball.
1/6
William saved 14 out of 20 goals in a match. This is his save rate as a percentage.
70%