Calculate the difference using knowledge of an adjusted subtrahend: difference structure
I can calculate the difference using knowledge of an adjusted subtrahend in a difference structure
Calculate the difference using knowledge of an adjusted subtrahend: difference structure
I can calculate the difference using knowledge of an adjusted subtrahend in a difference structure
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- The more you subtract the smaller the difference.
- The less you subtract the greater the difference.
- A number line can be used to represent the change in the subtrahend.
Keywords
Minuend - The minuend is the number being subtracted from.
Subtrahend - A subtrahend is a number subtracted from another.
Difference - The difference is the result after subtracting one number from another.
Adjust - When you adjust you make a change to a number. This is done to make a calculation easier to solve mentally.
Common misconception
Many pupils will try to adjust the difference in the same way that the subtrahend has been adjusted without considering the use of the inverse.
Start simply with double-sided counters to show the concept practically.
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
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Starter quiz
6 Questions
Exit quiz
6 Questions
