Fractions, decimals and percentages
Equations
Indices
Numbers of any magnitude
Algebra
100
Convert 70% to a fraction.
7/10
100
Solve.
5x = 60
x = 12
100
Evaluate 53
125
100
What does the prefix KILO stand for ?
1 thousand
100
Multiply x and 5y and to this result add 9
5xy + 9
200
Convert the following percentages to a decimal 63.2%
0.632
200
Solve.
3x + 5 = 17
x = 4
200
Simplify 23 x 25
28
200
127 x 43 = round to the 2 significant figures
5,500
200
x = 2, y = 3 and z = 4a
x + 2y + 3z =
20
300
What is 19% of $84
$15.96
300
Solve.
2(x+7) = 16
x = 1
300
(25 x 39) ÷ (23 x 34)
22 x 35
300
Round to 2 d.p 27.36567
27.37
300
Solve 7(x+3) - 2 = 33
x = 2
400
What percentage is 28min of 3 hours (round to 2 d.p)?
15.56%
400
Solve.
x2 = 36
x = 6 AND -6
400
(24 x 34) ÷ (?? x ?) = 23 x 32
2 x 32
400
4 centuries = how many decades
40
400
(8a)2 ÷ 16a =
4a
500
Increase 50 by 15%.
57.5
500
Solve.
3x2 = 60
500
(23 x 34 )2
26 x 38
500
Which prefix is used for a thousandth?
mili
500
If C = 59(F – 32), find C when F = 212
10620