计算下面各题 怎样简便就怎样计算.0.75×511+611×340.25×4÷0.25×4(110+117)×13+4÷170.6÷713+87×35-60%50-7.5

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计算下面各题,怎样简便就怎样计算.

0.75×

5
11
+
6
11
×
3
4
0.25×4÷0.25×4(
1
10
+
1
17
)×13+4÷17
0.6÷
7
13
+
8
7
×
3
5
-60%
50-7.5-1.3-1.2(
1
2
-
1
3
+
1
6
)×36.

热搜:1微米等于多少纳米怎样计算

答案解析

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  • (1)0.75×511+611×34,
    =0.75×(511+611),
    =0.75×1,
    =0.75;(2)0.25×4÷0.25×4,
    =0.25÷0.25×(4×4),
    =1×16,
    =16;(3)(110+117)×13+4÷17,
    =(110+117)×13+417,
    =110×13+117×13+417,
    =1310+(1317+417),
    =1310+1,
    =2310;(4)0.6÷713+87×35-60%,
    =0.6×137+87×0.6-0.6,
    =0.6×(137+87-1),
    =0.6×2,
    =1.2;(5)50-7.5-1.3-1.2,
    =50-(7.5+1.3+1.2),
    =50-10,
    =40;(6)(12-13+16)×36,
    =12×36-13×36+16×36,
    =18-12+6,
    =12.