Multiply a 2-digit number by a 1-digit number using short multiplication (no regroups)

I can multiply a 2-digit number by a 1-digit number using short multiplication (no regroups).

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Year 5

Multiply a 2-digit number by a 1-digit number using short multiplication (no regroups)

I can multiply a 2-digit number by a 1-digit number using short multiplication (no regroups).

Download all resources

Share activities with pupils

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Lesson details

Key learning points

Short multiplication is another way of representing 2-digit by 1-digit multiplication.
There are similarities between the representations of multiplication.
Arranging the factors in columns allows you to organise the partial products into a column addition.

Keywords

Short multiplication - A way of recording using columns to set out and calculate a multiplication.
Factor - A number that divides exactly into another number.

Common misconception

When using the short method, pupils may not align the digits correctly with the same place value.

Continue to ask what each digit that has been recorded represents, linking back to the place value chart.

Ensure pupils have lots of opportunities to set out their own short multiplication layouts. Model the alignment of digits: you may wish to provide scaffolds for some learners initially to ensure accurate layout.

Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).