Calculator and number skills (AQA GCSE Maths): Flashcards

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Calculator and number skills
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10 cards from this deck

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x2x^2 key function

Squares a number

x1x^{-1} key function

Finds the reciprocal

Ans key function

Uses previous answer in new calculation

(-) key function

Enters a negative number

S↔D key function

Changes between fraction and decimal format

BIDMAS acronym

Brackets, Indices, Division, Multiplication, Addition, Subtraction

Reciprocal definition

1 divided by number, or fraction flipped

Reciprocal of 7

rac{1}{7}

Square root calculation rule

Acts like a bracket - calculate inside first

Number × its reciprocal

Always equals 1

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