1.59×1.9+0.41×1.9-1.918.6-[12-0.328×(18.3+6.7)]63÷[6.5×(3.4-3.32)+2.98]96.12÷[(7-6.46)

2025-03-24 07:32:48
推荐回答(1个)
回答1:

(1)1.59×1.9+0.41×1.9-1.9,
=(1.59+0.41-1)×1.9,
=1×1.9,
=1.9;

(2)18.6-[12-0.328×(18.3+6.7)],
=18.6-[12-0.328×25],
=18.6-[12-8.2],
=18.6-3.8,
=14.8;

(3)63÷[6.5×(3.4-3.32)+2.98],
=63÷[6.5×0.08+2.98],
=63÷[0.52+2.98],
=63÷3.5,
=18;

(4)96.12÷[(7-6.46)×(43.6+56.4)],
=96.12÷[0.54×100],
=96.12÷54,
=1.78;

(5)[49.84-(53.17-14.56)÷27]÷0.47,
=[49.84-38.61÷27]÷0.47,
=[49.84-1.43]÷0.47,
=48.41÷0.47,
=103.