Substitution - GCSE maths grade 3

This video is a complete walkthrough of substitution for GCSE maths, and is aimed at around grade 3.

#gcse #formula #algebra #maths #math #revision #tutor #grade7 #substitutionmethod

Here's the timestamp:
0:00 Introduction
0:51 Q1 +ve number
1:24 Q2 +ve number
1:55 Q3 +ve number
2:18 Q4 decimal 0.5
3:00 Q5 multiples
3:24 Q6 multiples negative
4:01 Q7 multiples negative
4:35 Q8 multiples negative
5:10 Q9 multiples negative
5:47 Q10 multiple negative
6:27 Q11 multiple negative
7:01 Q12 brackets
7:37 Q13 brackets
8:28 Q14 multples
9:00 Q15 known formula
10.01 Q16 known formula
11.01 Q17 known formukla
11:50 Q18 word problem
13:20 Q19 known formula
15:00 Q20 known formula

You can download the worksheet for substitution from 3minutemaths, although please do
- stop the video
- work through the questions
- compare your solutions

I hope the video helps and please do leave a comment - thanks!

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