A [ ] is one symbol used to make a number; [ ] means a digit's value depends on its position.
A digit is one symbol used to make a number; place value means a digit's value depends on its position.
Flashcards for OCR GCSE Maths Addition and Subtraction, covering the key formulae, methods and definitions you need to recall for the written papers. 21 cards, matched to the OCR GCSE Maths (J560) specification.