Understand the relationship between addition and subtraction
I can understand the relationship between addition and subtraction.
Understand the relationship between addition and subtraction
I can understand the relationship between addition and subtraction.
Lesson details
Key learning points
- Equations can be represented using part-part-whole or bar models
- The sum in an addition and the minuend in a subtraction both represent the whole
- The addends in an addition and the subtrahend and difference in a subtraction both represent parts
Common misconception
Pupils may find it more difficult to understand equations that start with the whole (e.g. 20 = 50 - 30)
Emphasise the need for balance in equations. To be equal, both sides must have the same value.
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.
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
100
93
60
140
Exit quiz
6 Questions
50
75
125
150 − 60 = 90
90 = 130 − 40
130 − 80 = 50
80 = 150 − 70
