Subtraction – Find the Difference by Counting On (Whole Numbers) . Subtraction is often described as ‘take away’. Modelling subtraction as taking a part away from a total is intuitive and can be shown clearly using materials. Therefore, early work students do in primary school with subtraction usually involves taking a part away from a total. . In real life, subtraction is more often a situation where the unknown part is the difference between the known part and the total. Contexts include money

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