Learning reflection

This week in Maths we have been working on Substitution. 
Substitution into an equation involves replacing a variable with a number when it is known and then evaluating that equation [calculating the value of the result]. It is always important to remember the following:

- Always use the correct order of operations - BEDMAS

- One or more variables or numbers next to each other [such as 3a or xyz] meaning multiply them.

- A fraction represents division [top ÷ bottom

- Don't forget to replace a variable with its value every time it appears in a formula.

We have also learned about using formulae.

We often use formulae to represent practical situations. 

3 important lines of working out

- The formula itself

- The formula with values substituted for each of the variables

- The final answer

*Keep the equal signs lined up vertically so it makes your working out easy for someone else to follow