S1 I can take one away one from any number up to 10. S2 I can subtract U – U. S3 I can work out ‘how many I need to take away’ from a number to leave me with a given number. S4 I can subtract TU – U by counting back on a number line. S5 I can subtract TU – multiple of 10. S6 I can subtract TU – U without apparatus. S7 I can subtract TU – TU using apparatus or informal methods. S8 I can subtract TU-TU with no exchanging. S9 I can subtract £ and pence and cm. S10 I can subtract HTU-HTU with no exchanging. S11 I can subtract TU - TU with exchanging. S12 I can subtract HTU - TU with exchanging. S13 I can subtract numbers involving negative numbers set out on a number line. S14 I can subtract HTU - HTU with exchanging. S15 I can subtract £ and p. S16 I can subtract ThHTU – HTU. S17 I can subtract U.t – U.t. S18 I can subtract numbers with different amounts of digits. S19 I can subtract U.th – U.th. S20 I can subtract whole numbers and decimals. S21 I can subtract negative numbers in a context (e.g. temperature). S22 I can subtract different sized decimal numbers. S23 I can subtract more than two different sized decimal numbers.