Surds
Simplify √ 36
6
Make x the subject y=2x
x=y/2
What is the Mean of this set of numbers?
5, 10, 15
10
what is 9 x 8?
72
Find 1/3 of 21
7
simplify √ 45
3√ 5
Make x the subject y=x-9
x=y+9
what is the mode of this set of numbers
2, 4, 4, 6, 8
4
What is 14 x 12?
168
Find 2/5 of 30
12
simplify √ 98
7√ 2
Make x the subject 3y = 2x +12
x = (3y-12)/2
What is the median of this set of numbers?
3, 7, 9, 11, 15, 18
10
What is 25 x 16?
400
Find 3/8 of 64
24
The diagonal of a square is √ 50. Find the side length.
5
make x the subject: y = (x-4)/3
x = 3y+4
What is the range of this set of numbers?
12, 14, 18, 20, 25
13
what is 48 x 75?
3600
find 5/6 of 72
60
Simplify √ 12 x √ 18
6√ 6
Make x the subject y = 5/x
x = 5/y
What is the Mean, Median, Mode and Range of this set of numbers?
2, 4, 6, 6, 8, 10
Mean = 6
Mode = 6
Median = 6
Range = 8
what is 289 x 34?
9826
find 7/9 of 81
63