Calculate the difference in different contexts
I can calculate the difference in different contexts.
Calculate the difference in different contexts
I can calculate the difference in different contexts.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- You calculate the difference by counting on from the known part to the whole.
- The difference is the answer to a subtraction calculation.
- The difference is one of the parts that make the whole.
Keywords
Difference - The amount which a number is greater or smaller.
Subtraction - To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.
Count on - A mental strategy used to add numbers.
Common misconception
Children think that 'counting on' is used solely as a strategy in addition.
Children should be made aware that the strategy for 'counting on' can be used in addition but is used as a strategy for subtraction in this lesson where we are finding the difference between two numbers close in value.
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
