问题 解答题
脱式计算.
(390-40)÷7350÷5-58548÷4×6.
答案

①(390-40)÷7,

=350÷7,

=50;

②350÷5-58,

=70-58,

=12;

③548÷4×6,

=137×6,

=822.

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