AN N1/E1.2 Read & write numbers up to 10 inc. zero
Read and write numbers up to ten including zero (a) understand that numerals can be represented in different ways, e.g. Roman numerals, Arabic numerals. (b) recognise Arabic numerals written in different fonts and styles.
Adult Numeracy Core Curriculum, Basic Skills Agency / DfEE (2001, 2006): https://www.excellencegateway.org.uk/content/etf1075