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5. Exercises

Revision as of 12:23, 20 January 2009 by Lina (Talk | contribs)

Exercises

Work out (without the help of a calculator)

a)	3−7−4+6−5	b)	3−(7−4)+(6−5)
c)	3−(7−(4+6)−5)	d)	3−(7−(4+6))−5

Simplify

a)	(3−(7−4))(6−5)	b)	3−(((7−4)+6)−5)
c)	3(−7)−4(6−5)	d)	3(−7)−(4+6)(−5)