Algebra / Indices
Number
Circles
Equations
Percentages
100
Simplify 2x – 3x
-x
100
10 – 3 × 8 ÷ 24 =
9
100
What is the circumference of a circle with a diameter of 5m
5 x pi = 15.7m (1dp)
100
4x = 100
x = 25
100
15% x 32 =
4.8
200
simplify 3a^4 x a^3
3a^7
200
Cube root of 8 =
2
200
The circumference of a circle with a radius of 5 cm. [enough to say what to put into a calculator]
10 x pi = 31.4 cm (1dp)
200
2x - 3 = 7
x = 5
200
Increase 250 by 10%
275
300
Simplify 3a^6 ÷ a^3 Answers: A) 6a B) 3a^2 C) 3a^3 D) 6a^6
C) 3a^3
300
Convert 120km/hr into m/s
120000/3600 = 33.3333... m/s
300
What is the area of a quadrant with a radius of 5cm.
25 x pi = 78.5 cm^2
300
72 - 5x = 12
x = 12
300
Which is biggest? A) 66% B) 0.6666.... C) 3/5 D) A and B are equal first
0.666666666666.....
400
(3a^8)^2 A) 6a^10 B) 9a^16 C) 9a^10 D) 3a^16
B) 9a^16
400
3.1 x 10^(-2) Answer: A) 3100 B) -9.61 C) -6.2 D) 0.031
D) 0.031
400
A small piece of a circumference of a circle is called:
an ARC.
400
4x^2 = 40x
x = 0 or 10
400
33 is increased to 37. The percentage increase is closest to: A) 89% B) 4% C) 12% D) 50%
c) 12%
500
3^2 + 3^0
10
500
-3 x -4 x (-1)^67 Answer: A) 12 B) -12 C) -75 D) -55
B) -12
500
The area of a semicircle with a diameter of 20km is:
0.5 x pi x 10^2 = 157.1 km^2
500
Solve 5(x - 2) = 3(x - 7)
x = - 11/2 = -5.5
500
$90 is 120% of the wholesale price. What is the wholesale price?
$75
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