问题 解答题

脱式计算.

175-75÷25        68+35×13        725-(125+237)

(114+166)÷35      432÷(9×8)+189-60+40.

答案

(1)175-75÷25,

=175-3,

=172;

(2)68+35×13,

=68+455,

=523;

(3)725-(125+237),

=725-125-237,

=600-237,

=363;

(4)(114+166)÷35,

=280÷35,

=8;

(5)432÷(9×8)+189-60+40,

=432÷72+189-60+40,

=6+189-60+40,

=195-60+40,

=135+40,

=175.

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