问题 解答题
脱式计算
(38-20)×2635÷5×7-5378+320÷8-300390÷(21÷3+2)
答案

(1)(38-20)×26,

=18×26,

=468;

(2)35÷5×7-5,

=7×7-5,

=49-5,

=44;

(3)378+320÷8-300,

=378+40-300,

=418-300,

=118;

(4)390÷(21÷3+2),

=390÷(7+2),

=390÷9,

=43

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