问题
解答题
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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.