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(34×38-34×18)÷93254-13×95-25730×35÷730×253-89÷
问题详情
参考答案
(1)(34×38-34×18)÷932
=34×(38-18)÷932
=34×14×329
=23;
(2)54-13×95-25
=54-35-25
=54-(35+25)
=54-1
=14;
(3)730×35÷730×25
=730÷730×25×35
=625;
(4)3-89÷56×316
=3-89×65×316
=3-15
=245;(5)(1-14×89)÷79=(1-29)÷79=79÷79
=1;
(6)12÷[(79-23)×910]=12÷[19×910]=12÷110
=120;
(7)[14+(16+23)]×23
=[14+56]×23
=1312×23
=1318;
(8)34×[1÷(56+34)]
=34×[1÷1912]
=34×1219
=919;
(9)(1-17)×(116×143)
=67×724
=14.
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