Explore mental and written strategies to solve problems
Lesson 2 / 5
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I can explore written and mental strategies to solve problems.
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Looking at the numbers involved and using number-sense supports us to know which strategy is more efficient.
A number line is a useful mental strategy when it is obvious what to add or subtract.
When using a formal written method the concept of constant difference can be used to make the calculation easier.
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This content is by Cashar and published under an open licence.