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1 A Negative number rules
-a+-a= -
Square and cube
Orders of operation
Operating interger
Rules for negative and positivee
1b
Decimals and signifant figures
rounding to a number of decimal places
eg round to two
Rules
ROundinf to a number siginicant figure s
Estimating using signifcant figures
1c Rational numbers
1d Operation with fractions
1c best buy and ratio
