We have just published another set of maths worksheets on multiplying 2-digit and 3-digit numbers by ten or one hundred. Multiplying by ten moves each digit one place to the left, whilst multiplying by one hundred moves each digit two places to the left. Zeros are placed in the empty spaces, but don't fall into the trap of saying 'add a nought' as this leads to a lot of unlearning when it comes to decimals. The way the questions are laid out means that the answer is often given, which means that a little more thought has to be given to complete the number sentence correctly and the relationship between multiplication and division can be clearly seen.