Use knowledge of the distributive law to calculate products using known times tables
I can use knowledge of the distributive law to calculate products using known times tables.
Use knowledge of the distributive law to calculate products using known times tables
I can use knowledge of the distributive law to calculate products using known times tables.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- If you know the 2 and 10 times tables you can work out the 12 times table.
- If you know the 10 times table you can work out the 9 times table.
- The distributive law allows you to add or subtract known times tables to work out new times table facts.
Keywords
Partition - Partitioning is the act of splitting an object or value down into smaller parts.
Distributive law - The distributive law says that multiplying a number by a group of numbers added together is the same as doing each multiplication separately.
Partial product - A partial product is any of the multiplication results we get leading up to an overall multiplication result.
Common misconception
Pupils may think that there is only one strategy for finding a solution and struggle to see that there is more than one way of partitioning a factor.
Spend some time discussing how many combinations of partitioned factor you could use with the distributive law and evaluate each combination for efficiency. This would be a worthwhile guided group task.
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).
Lesson video
Loading...
Starter quiz
6 Questions
Exit quiz
6 Questions
