The free GCSE Maths Higher diagnostic

6 questions, about 5 minutes. We name the exact AQA misconception losing you marks -- not “you need more practice”, the specific pattern -- and point you at the targeted lesson that fixes it.

No signup needed. Designed around AQA. Year 10 and Year 11.

GCSE Maths Higher Diagnostic: Index laws & standard formQuestion 1 of 6

Which expression is equal to $\dfrac{1}{8^5}$ ?

8^{-5}

-8^5

5^{-8}