问题
解答题
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答案
(1)3500-(125+42)×15,
=3500-167×15,
=3500-2505,
=995;
(2)(480+20×4)÷2,
=(480+80)÷2,
=560÷2,
=280;
(3)2100÷70+14×50,
=30+700,
=730;
(4)200×52÷(100÷20),
=200×52÷5,
=10400÷5,
=2080;
(5)130÷(26×5-65),
=130÷(130-65),
=130÷65,
=2;
(6)1008÷(8×9),
=1008÷72,
=14;
(7)205-5×(8+20),
=205-5×28,
=205-140,
=65;
(8)204-(5×8+20),
=204-(40+20),
=204-60,
=144.