About this worksheet
A Year 2 reasoning challenge in four parts over three pages. Pupils judge six number sentences as true or false and write how they know, including 42 - 15 = 15 - 42 and 19 + 35 = 35 + 29. They find the odd one out in a fact family for 28, 17 and 45, then fill missing digits in two additions and two subtractions. The last page asks for every pair of two-digit numbers that makes 50 from the cards 1, 3, 4 and 6. Answers explain each step. It targets the England National Curriculum statements on inverse and commutative facts.
