Scale divisions derived from multiplication facts by 10
I can use unitising and multiplying and dividing by 10 to scale division facts.
Scale divisions derived from multiplication facts by 10
I can use unitising and multiplying and dividing by 10 to scale division facts.
Lesson details
Key learning points
- Division is the inverse of multiplication
- If you know that 3 groups of 4 are equal to 12 then there are 3 groups of 4 in 12
- If you know there are 3 groups of 4 in 12 then there are 3 groups of 4 tens in 12 tens
Common misconception
Lack of fluency in 2s, 4s and 8s times tables and not understanding the divisibility rules or the problems.
To clearly model use of gattegno chart or place value chart to highlight scaling up and down by 10. Highlight key words of worded problems to understand the problem and the operation required for the calculation.
Keywords
Scale / scaling - Scaling is when a given quantity is made ___ times the size. In this lesson, scaling will involve making values 10 times the size.
Inverse - Inverse means the opposite in effect. The reverse of.
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
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Starter quiz
6 Questions
8 × 40
60 × 4
20 × 8
6 × 90
Exit quiz
6 Questions
