Indeed, monetarism is the fatal conceit that says wise minds should control the economy through the addition and subtraction of dollars.

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They do so by starting chain-reactions that result in the addition and subtraction of molecular sub-units known as phosphate groups from particular proteins in the nerve cell being stimulated.

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Chris Bryant, who's been batting for Labour in the media on Lords Reform (even though his shadow ministerial job is immigration), expects the bill to reach a third reading in the end, probably with the addition of a referendum, and the subtraction of the bishops.

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The basic concepts of addition and subtraction, place value, multiplication and division, and how they relate to each other, need to be understood before children can go any further in the subject, he says.

BBC: Primary maths plan threatens 'too much too soon'

All Filipinos assume that a certain amount of dagdag-bawas, meaning addition and subtraction, goes on during the count.

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It also expects pupils be able to recall subtraction and addition sums to 20 by the age of seven.

BBC: Primary maths plan threatens 'too much too soon'

"All young children should be confident with methods of addition, subtraction, times tables and division before they pick up the calculator to work out more complex sums, " she said.

BBC: Government bans calculators from primary maths tests