灵活计算. 952-952÷17(34-34×25)÷15(512+119)×12+7191.28×5.37-2.8×0.53727×1115+415÷72121×117×(2009×42×8

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灵活计算.
952-952÷17(
3
4
-
3
4
×
2
5
)÷
1
5
(
5
12
+
1
19
)×12+
7
19
1.28×5.37-2.8×0.537
2
7
×
11
15
+
4
15
÷
7
2
1
21
×
1
17
×(2009×42×85)

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答案解析

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  • (1)952-952÷17,
    =952-56,
    =896;(2)(34-34×25)÷15,
    =(34-310)÷15,
    =920÷15,
    =94;(3)(512+119)×12+719,
    =512×12+119×12+719,
    =5+1219+712,
    =5+(1219+712),
    =5+1,
    =6;(4)1.28×5.37-2.8×0.537,
    =1.28×5.37-0.28×5.37,
    =(1.28-0.28)×5.37,
    =1×5.37,
    =5.37;(5)27×1115+415÷72,
    =27×1115+415×27,
    =27×(1115+415),
    =27×1,
    =27;(6)121×117×(2009×42×85),
    =121×117×2009×42×85,
    =2009×2×5,
    =2009×(2×5),
    =2009×10,
    =20090.