Mental Maths
Calculate:
4327 + 786 + 84 + 9
5206.
What is 38% as a decimal.
0.38
Calculate the area of a rectangle that has the length 12m and a width 8m.
96 metres squared.
What word describes the distance around the outside of a shape?
Perimeter.
What is the capital city of Australia?
Canberra.
8732 - 747
7985.
What is 25% of 880?
220.
You were measuring the sides of a triangle. If the longest side was 25m and one of the other sides was 24m, calculate the length of the third side?
7m.
What do you call the longest side of a right angled triangle?
Hypotenuse.
Who is the premier of Western Australia?
Roger Cook.
Calculate:
49 x 15
735.
Solve for x
2x + 6 = 30
x =
12.
Calculate the volume of a rectangular prism with a length 6cm, width 4cm and a height 3cm.
72cm cubed.
What word describes the amount an object can hold?
Capacity.
What would you be writing about if you were writing about an Autobiograhy?
Yourself.
How many 20c pieces are needed to make $200?
1000.
You worked 5 hours at $40 an hour. You then worked 4 hours of double time. Calculate how much you earned in total?
$520.
The two shorter sides of a right angled triangle was 9cm and 12cm. Calculate the length of the hypotenuse.
15cm.
What is the word that describes the reduction in the cost price of an item?
Discount.
The AFL Grand Final is on Saturday. Which two teams are playing?
Brisbane and Geelong.
Calculate:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20.
210.
Calculate the midpoint of these two points:
(2, 3) and (6, 11)
(4,7)
What is the perimeter of a square if the area is 100 metres squared.
40m.
What word describes the steepness of a line.
Gradient.
Which country has the biggest population?
India.