问题 解答题
①75+225÷(20-5)②(46-32)×(7+25)
③(124-85)×12÷13④235-135÷5.
答案

①75+225÷(20-5),

=75+225÷15,

=75+15,

=90;

②(46-32)×(7+25),

=14×32,

=448;

③(124-85)×12÷13,

=39×12÷13,

=468÷13,

=36;

④235-135÷5,

=235-27,

=208.

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