This introduction covers The Rules of Powers within Index Laws for GCSE Mathematics. Revise Index Laws in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 1 of 13 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 13
Practice
14 questions
Recall
22 flashcards
The Rules of Powers
When scientists write the number of atoms in a mole (602,000,000,000,000,000,000,000), they use 6.02 × 10²³. When calculating compound interest or bacterial growth, we multiply powers together. Index laws are the rules that make working with powers quick and elegant, turning complex calculations into simple addition and subtraction.