Denton West End Primary School

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Balmoral Drive, Manchester, Lancashire, M34 2JX

0161 336 3409

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Subtraction - Mental Calculation Methods

General Strategy

Partitioning - bridging method

Partitioning - Into component parts

Special Case Strategies

Calculating a small difference. E.g. 37-35 (compare multi-link towers/look at position of numbers on a number line.

Compensation - rounding and adjusting

Subtraction vocabulary includes; total, take, take away, leave, How many are left? How many have gone? Less, fewer, difference between.