Use number facts to solve addition and subtraction problems.
I can use number facts to solve addition and subtraction problems.
Use number facts to solve addition and subtraction problems.
I can use number facts to solve addition and subtraction problems.
Lesson details
Key learning points
- Known facts can be used to help find new facts efficiently.
- Known facts can be used to solve addition and subtraction problems.
- Bar models can be drawn to help represent and understand problems.
Common misconception
Children may have difficulty knowing which operation is required to solve a problem, particularly in those involving finding the difference.
Encourage children to draw bar models or part-part-whole models to support their understanding of the structure of the problem and to articulate their thinking (as modelled in the lesson).
Keywords
Efficiently - Not wasting time or effort. An efficient strategy is one we can carry out easily.
Whole - All of something. Complete.
Part - A piece or section of a whole.
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
35 - 2 = 33
97 - 4 = 93
33 - 2 = 31