Here’s a quick one to practice on. Remember, just like the Question 6, we want to break things down into easily understandable components that are quickly calculated. So things like 10 + 10 are easy to calculate in your head but things like 456 + 39 are not as quickly calculated.
This is the question:
18% of £300 is?
Here’s how I would approach it with all calculations done in my head.
1) Find an easy way.
18% x 300 is quite a long calculation isn’t it. Let’s see if there’s an easier way.
What’s 300 made up of? Well… it’s made up of 3 lots of £100.
18% of £100 is easy. It’s just £18.
So multiply £18 x 3 =£54 (3 x 8 is 24, 3 x 1 = 3 + 2 = 5. so 54 is the answer).
So your answer is £54!
Again, with short maths questions in the CEM 11+ Test, make sure you break things down into components that you can calculate easily.
Good Luck with your exams and any questions/comments - just let us know below!