When asked to multiply numbers with zeros, students love it. They realize they may disregard the zero during calculations and only include it again when recording the result. There is a lot of practice with this concept in the multiply multiples of 1000 and 1-digit numbers worksheet. In each problem, the numbers are laid out in the horizontal format. Students should try to use different strategies involving composing and decomposing numbers to solve these problems. This will help them develop flexibility and fluency.