(aubrey) fractions and decimals - no calculator
What is ½ + ¼?
¾
Name 4 3d shapes
x + 3 < 7
x < 4
sin(30∘) in a right angle triangle
1/2
A number increases by 20% and becomes 72. What was the original number?
60
Convert 7/8 to a decimal
0.875
What is the formula for the volume of a sphere?
4/3 x π x r^3
2x - 5 ≥ 3
x ≥ 4
simplify 18/25
3/4
Find the gradient of the line that passes through the points (2, 3) and (6, 15).
3/5 × 2/3
2/5
A cylindrical water tank has a radius of 4 meters and a height of 3 meters. What is the volume of the tank in cubic meters? Give your answer to 1 decimal place.
150.8 m^3
-3x < 9
x > -3
A triangle’s angles are in the ratio 2 : 3 : 4.
What are the angles?
40,60 and 80 degrees
Factorise x² + 5x + 6
(x+2)(x+3) or (x+3)(x+2)
0.6 ÷ 0.2
3
a triangles angles are in the ratio 3:9:12.
What is the difference in sizes between the largest angle and the smallest angle?
135
Which of these is the solution to:
3 < 2x + 1 ≤ 7?
A) x = 0
B) x = 2
C) x = 4
x = 2
72-52
24
what is a 12-sided shape called?
Dodecagon
Which is greater: 2/3 or 0.66?
2/3, because 2/3 = 0.666…
A triangle has sides of lengths 5cm, 12cm and 13cm. Is it a right-angle triangle?
Yes, it is a right-angle triangle
Write an inequality for this statement:
“The temperature, t, is no more than 12°C.”
t ≤ 12
432÷6
72
What’s the difference between a kite and a rhombus?
A rhombus has all four sides equal, and both pairs of opposite angles equal, but a kite has two pairs of adjacent equal sides, and one pair of opposite angles equal.
or
Not all kites are rhombuses, but all rhombuses are kites.