Read the Missing number word problems. Make sure you use the RUCSAC method from a previous weeks planning when you are working out the answer. Work out the missing number in the problem and write the number sentence. THEN record yourself explaining how you worked out the answer on each page. Top Tip for working out and explaining: Do you need number facts or counting on to work out the missing number? There are 2 questions to answer and a CHALLENGE. Please complete both word problems and then the challenge if you can.