递等式计算(能简算的要简算)18.08-(1.08+79)-297949×0.875+79÷1.612.4-2.4÷415÷2.54.2÷[25×(2.8-1.05)](3.6×0.75×1.2)÷(1.5×24×0.18)310+340+388+3154.-数学
题文
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答案
(1)18.08-(1.08+
=18.08-1.08-
=17-(
=17-1, =16; (2)79
=(80-
=80×
=70-( |
题文
|
答案
(1)18.08-(1.08+
=18.08-1.08-
=17-(
=17-1, =16; (2)79
=(80-
=80×
=70-( |