Solve problems involving addition and subtraction
Lesson 15 / 15
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Lesson outcome
I can solve problems involving the addition and subtraction of two-digit numbers.
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When solving problems, it must be decided whether to add or subtract in order to solve it.
If the ones digits crosses the tens boundary, it shows that the bridge 10 strategy can be used.
A number line can be drawn or visualised to help solve problems efficiently.
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This content is by Cashar and published under an open licence.