Have your class shown confidence with adding and subtracting 100s, 10s or 1s from a 3-digit number? If so, how about providing them with a further challenge with this Year 3 Add or Subtract 100s, 10s or 1s Reasoning and Problem Solving resource! Requiring a little deeper thinking, this activity applies previously taught skills to a range of problem solving contexts.

Ideal for using in a small group or independently, there are a total of six questions and we've added an answer page to make marking a breeze too. Give it a go !