早教吧 育儿知识 作业答案 考试题库 百科 知识分享

计算:(1)(-513)÷(-16)÷(-2);(2)-4+2×(-3)-6÷0.25;(3)(-5)÷[1.85-(2-134)×7];(4)18÷{1-[0.4+(1-0.4)]×0.4}.

题目详情
计算:
(1)(-5
1
3
)÷(-16)÷(-2);
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
3
4
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
计算:
(1)(-5
1
3
)÷(-16)÷(-2);
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
3
4
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.

1
3
)÷(-16)÷(-2);
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
3
4
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
1
3
131133

3
4
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
3
4
343344
▼优质解答
答案和解析
(1)原式=(-
16
3
)×(-
1
16
)×(-
1
2
)=-
16
3
×
1
16
×
1
2
=-
1
6

(2)原式=-4-6-24=-(4+6+24)=-34;
(3)原式=(-5)÷(1.85-1.75)=-5÷0.1=50;
(4)原式=18÷[1-(0.4+1-0.4)×0.4]=18÷0.6=30.
(-
16
3
163161616333)×(-
1
16
116111161616)×(-
1
2
12111222)=-
16
3
×
1
16
×
1
2
=-
1
6

(2)原式=-4-6-24=-(4+6+24)=-34;
(3)原式=(-5)÷(1.85-1.75)=-5÷0.1=50;
(4)原式=18÷[1-(0.4+1-0.4)×0.4]=18÷0.6=30.
-
16
3
163161616333×
1
16
116111161616×
1
2
12111222=-
1
6

(2)原式=-4-6-24=-(4+6+24)=-34;
(3)原式=(-5)÷(1.85-1.75)=-5÷0.1=50;
(4)原式=18÷[1-(0.4+1-0.4)×0.4]=18÷0.6=30.
-
1
6
16111666;
(2)原式=-4-6-24=-(4+6+24)=-34;
(3)原式=(-5)÷(1.85-1.75)=-5÷0.1=50;
(4)原式=18÷[1-(0.4+1-0.4)×0.4]=18÷0.6=30.