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and that walking the boundaries means more than following lines on a map
Excel Basic Skills Workbooks: Mental Maths Strategies Year 1 Specials rather gentle young pandaMental Maths is the maths we do in our heads without the use of calculators and without writing down the calculation. Mental Maths strategies are the 'tricks' we use to do Maths is our heads. There are different ways of finding the answer to any Mental Maths problem, and such strategies are the focus of this series. Even though calculators and computers play an enormous role in the modern world, we still need to go back to the basics we do need to
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