MATHS TALKFirst steps

EFFEGIPI_CLIL_2015

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NUMBERS SETSℕ Set of NATURAL numbersℤ Set of INTEGER numbers

Set of RATIONAL numbersℚℝ Set of REAL numbers

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ARITHMETIC SYMBOLS= equalsisis equal to

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ARITHMETIC SYMBOLS≠ not equal to6≠7six (is)not equal to seven

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ARITHMETIC SYMBOLS+ plusadded to

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3+4=7three plus four equals seventhree added to four is seven

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ARITHMETIC SYMBOLS

minus

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9-11=-2nine minus eleven equals minus (negative)two

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ARITHMETIC SYMBOLStimesmultiplied by

⨯ ⦁

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-4x5=-20minus (negative)four times five equals minus (negative)twenty

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ARITHMETIC SYMBOLSdivided by over:

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35:5=7thirty five divided by five equals seven

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ARITHMETIC SYMBOLSfractiona over b

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ARITHMETIC SYMBOLS

fraction barnumeratordenominator

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35

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+ = 1110

three over five plus one over two equals eleven over ten

three fifths plus one half equals eleven tenths

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( )[ ]{ }bracketsround bracketssquare bracketscurly brackets

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OTHER SYMBOLS><≤≅±

≥ greater thanless thangreater than or equal toless than or equal toapproximately equal toplus or minus

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POWERSbnb (raised) to the n-thb (raised) to the power n

exponentbase

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POWERS b2b (raised) to the secondb (raised) to the power 2b squared

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POWERS b3b (raised) to the thirdb (raised) to the power 3b cubed

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POWERS b-nb to the power minus (negative) n

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ROOTS

n-th root of aroot indexradicand

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ROOTSsecond root of asquare root of a

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ROOTSthird root of acube root of a

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EXPRESSIONSa plus b all to the n-th

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EXPRESSIONSa plus b all squared

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EXPRESSIONS

a plus b all cubed