Mental Maths Gr 7

R12,99 + R14,95 =

• R27,95

• R27,94

• R27,99

• R27,90

Select the smallest decimal

0,125 ; 0,205 ; 0,025

(a)  

Select all the lists that are made up of prime numbers ONLY.

• 1 ; 2 ; 3 ; 5 ; 7

• 2 ; 5 ; 17 ; 19

• 1 ; 4 ; 9 ; 25 ; 36

• 11 ; 13 ; 23 ; 31

Find the perimeter of a square with sides of 185cm.

(a)  

How many minutes in 2 days 3 hours and 20 minutes altogether?

(a)  

A triangle that has;

>all sides equal in length

>all angles are 60°

is classified as a ….

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right angle triangle

0,6 in its SIMPLEST fraction form is written as...

• 
• 
• 
• 

15% of R420 = ?

(a)  

0,07 x 9 = ?

• 63

• 6,3

• 0,063

• 0,63

Rectangle has an Area of 200 square meters.

If the width of the rectangle is 5cm,

what is the length?

(a)