问题
解答题
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答案
(1)(78+52)×(120÷60)
=130×2
=260;
(2)(128-72)×12÷48
=56×12÷48
=672÷48
=14;
(3)80-(16.405+14.9)
=80-31.305
=48.695;
(4)68.7-(44.6+0.375)
=68.7-44.975
=23.725;
(5)150×40×25×2
=(150×2)×(40×25)
=300×1000
=300000;
(6)5625÷75+25×32
=75+800
=875.