It is very important that they know that to multiply a whole number by ten a zero can be added to the number. It is better to say that the digits move into the next larger place value column. After learning how to multiply by ten, children can see how to multiply by multiples of ten. Multiplication by a number with two or more digits These multiplications require understanding of all that has come before. They are less important now that calculators are common so not all children need to master the algorithm.
Extensive practice is no longer a high priority.
The two results are then added to get the final result. It will be written down as follows. There are a variety of slightly different ways of setting out the algorithm. Children are more likely to keep columns aligned if they put in the zeros. Move carry digits somehwere else, move multiplication sign to the other side Move carry digits somewhere else and mult sign on top other side Not advised Back to top Teaching the formal algorithm in the calculator era.