问题 解答题
递等式计算.
197-12×9+61
38+160÷(40-30)(224-185)×12÷26
(25+40)×4 135-135÷15(55+250)÷(30-25)
答案

(1)197-12×9+61,

=197-108+61,

=89+61,

=150;

(2)38+160÷(40-30),

=38+160÷10,

=38+16,

=54;

(3)(224-185)×12÷26,

=39×12÷26,

=468÷26,

=18;

(4)(25+40)×4,

=25×4+40×4,

=100+160,

=260;

(5)135-135÷15,

=135-9,

=126;

(6)(55+250)÷(30-25),

=305÷5,

=61.

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