Rearranging Formulas (Edexcel GCSE Maths): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the subject of a formula?
What is the subject of a formula?
Letter alone on one side of equals sign
What is step 1 of the 7-step method?
What is step 1 of the 7-step method?
Remove square root signs
In step 2, how do you remove fractions?
In step 2, how do you remove fractions?
Multiply every term by denominator
What might you need to do in step 5 when combining like terms?
What might you need to do in step 5 when combining like terms?
Factorise
When must you include the sign?
When must you include the sign?
When taking square root at the end
If , what should you do first to make the subject?
If , what should you do first to make the subject?
Square both sides
Which steps are mainly used when the subject appears in a fraction?
Which steps are mainly used when the subject appears in a fraction?
Steps 2, 4, 5, 6
What do you need to do when the subject appears twice in the formula?
What do you need to do when the subject appears twice in the formula?
Factorise to take out common factor
When working with fractions, when should you multiply through by the denominator?
When working with fractions, when should you multiply through by the denominator?
Early in the process
If the original formula has , do you need when making the subject?
If the original formula has , do you need when making the subject?
No, means positive root only
What is step 7 of the 7-step method?
What is step 7 of the 7-step method?
Take square roots if needed
How can you check if your rearranged formula is correct?
How can you check if your rearranged formula is correct?
Substitute back into original formula