Use the diagram on this one page website to solve the problem. There are teacher notes and the solution is only a click away.

Practice solving problems like 344+20 and 344+200. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Create customized interactive online multiplication worksheets. Choose from up to three-digit by three-digit questions. The size of problem set can also be selected, as well as whether the format will be vertical or horizontal. Select...