How to get a grade c in GCSE maths
c grade gcse maths
I will show you how to get a grade C in GCSE maths. I am a private tutor who has helped hundreds of students to up their grades. Many students have moved from an E to a C in ten lessons. Some of my students have letters from the exam board informing them that they achieved full marks in their exams. Many of my pupils have also moved from C grades to A and A*. But in this hub I want to concentrate on getting the magical C grade.
I am in the process of writing a revision book for GCSE students which will be free because I want young people to succeed. It will be published through smashwords, a free publishing service and will be available at online publishers.
OK, you need to master algebra, formulae, Pythagoras and percentages to get started. The good news is that they are heavily connected and learning some simple stuff will get you scoring far higher marks than you have ever got.
Let's start.
6 + 4 = 10
6 = 10 -4
The rule is that when something is adding or subtracting, that it changes its sign when it jumps over the = sign.
8+ 2 = 10
8 = 10 -2
That 's true. Isn't it?
8 -2 = 6
becomes 8 = 6 + 2
So x - 4 = 10 becomes x = 10+4
x=14
x+3 = 10 becomes x=10-3
x=7
To get a C grade at GCSE you must know how to manipulate 3 x 2 = 6
3= 6/2
2=6/3
When multipliers jump over an equal sign (=) they become a divider,
All you have to do is really understand fractions and you can get a C grade or even tackle A grade questions.
3 x 2 = 6
3 = 6/2
So 3x = 6
becomes x= 6/3 ( 3x means 3 times x )
so x =2
Now try this.
3x - 4 = 8
3x = 8 + 4
3x =12
3x =12 ( this means 3 multiplied by x) So the 3 becomes a divider if it jumps over the + sign.
x = 12/3
x=4
Try this one:
(2x+2)/6 = 2
Dividers become multipliers
2x +2 = 6x 2
so 2x +2 = 12
2x = 12 - 2
2x = 10
x = 10/2
x = 5
I show my learners this connection. These simple rules apply to algebra, formulae, pythagorus, trigonometry and even percentages.
2/3 = 4/6 is the basis for many A and A* questions.
There are some easy questions on the higher papers that are based on this.
So try these questions. Find the value of x.
1.) 5x = 20
x =
2.)4x + 3 =11
3.) 4x +3 = 23
4.) 5x -10 = 5
5.) 3x/10 =3
Answers
1.) 5x =20
x = 20/5
x= 4
2.) 4x + 3 = 11
4x = 11 - 3
4x = 8
x = 8/ 4
x = 2
3.) 4x+3 = 23
4x=23 - 3
4x = 20
x = 20/4
x =5
4.) 5x - 10 = 5
5x = 5 + 10
5x =15
x = 15/5
x = 3
5.) 3x/10 = 3
3x = 30
x = 30/3
x = 10