This Year 6 Multiply by 10, 100 and 1,000 Discussion Problem is ideal for those children who require an extra challenge to deepen their understanding. There are two open-ended questions included that are designed to be completed in pairs or small groups. Both questions have engaging contexts. The first question is about robots and the second is a genie's riddle. This worksheet also includes multiplying by multiples of ten, one hundred and one thousand to really stretch pupils' skills.