Mental Maths (NON-CALC)
Calculate 48 + 27
75
Convert 3.5 metres into centimetres
350cm
What is the angle sum of a quadrilateral?
360 degrees
What is the word used to describe the slope of a line?
Gradient
What is the name of the longest side of a right-angled triangle?
Calculate 120 divided by 5
24
A rectangle is 12 cm long and 7 cm wide. Find its perimeter
38cm
What is the angle sum of a triangle?
180 degrees
What is the name of the point where a line crosses the y-axis?
y-intercept
A right-angled triangle has shorter sides of 6 cm and 8 cm. Find the hypotenuse.
10cm
Calculate 25% of 80
20
Find the area of a triangle with a base of 14 cm and a perpendicular height of 9 cm
63 cm2
Two parallel lines are crossed by a transversal. One angle is 68 degrees. What is the size of its co-interior angle?
112 degrees
If y = x + 3, find y when x = 5.
8
A right-angled triangle has a hypotenuse of 13 cm and one shorter side of 5 cm. Find the missing side.
12cm
Calculate 15 x 12
180
A rectangular prism is 8 cm long, 5 cm wide and 6 cm high. Find its total surface area
236 cm2
An isosceles triangle has one angle of 40 degrees between its two equal sides. What is the size of each of the other two angles?
70 degrees
If y = 2x, find y when x = 6.
12
A 10 m ladder leans against a wall. Its base is 6 m from the wall. How high up the wall does it reach?
8m
Calculate 3/4 of 200, then subtract 35
115
A cylindrical tank has a radius of 3 m and a height of 8 m. Calculate its volume.
226.08 m3
A parallelogram has one interior angle of 65 degrees. What are the sizes of its other three angles?
115 degrees, 65 degrees and 115 degrees
A number pattern starts at 4 and increases by 3 each time. What is the 6th number in the pattern?
19
A rectangle has a diagonal of 25 cm and a width of 7 cm. Find its perimeter.
62cm