Explain how to use long multiplication to multiply two 2-digit numbers regrouping ones to tens
I can explain how to use long multiplication to multiply two 2-digit numbers regrouping ones to tens.
Explain how to use long multiplication to multiply two 2-digit numbers regrouping ones to tens
I can explain how to use long multiplication to multiply two 2-digit numbers regrouping ones to tens.
Lesson details
Key learning points
- Partition one of the factors.
- Calculate the partial products.
- Add the partial products to recombine.
Common misconception
Pupils forget to include regrouped values when multiplying.
Decide on a place and structure for regrouped values - they are included at the top of the algorithm in these lessons to avoid confusion with addition regrouping when partial products are summed. Ensure this is clearly modelled.
Keywords
Partial product - Any of the multiplication results we get leading up to an overall multiplication result is a partial product.
Equipment
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).
Video
Loading...
Starter quiz
6 Questions
Exit quiz
6 Questions
No regrouping
1 regroup from ones to tens