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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
)÷(-16)÷(-2);
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.计算:
(1)(-5
)÷(-16)÷(-2);
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
)÷(-16)÷(-2);
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
1 3 1 1 3 3
)×7];
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
3 4 3 3 4 4
(1)(-5
1 |
3 |
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
3 |
4 |
(4)18÷{1-[0.4+(1-0.4)]×0.4}.计算:
(1)(-5
1 |
3 |
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
3 |
4 |
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
1 |
3 |
(2)-4+2×(-3)-6÷0.25;
(3)(-5)÷[1.85-(2-1
3 |
4 |
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
1 |
3 |
3 |
4 |
(4)18÷{1-[0.4+(1-0.4)]×0.4}.
3 |
4 |
▼优质解答
答案和解析
(1)原式=(-
)×(-
)×(-
)=-
×
×
=-
;
(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 16 16 163 3 3)×(-
1 16 1 1 116 16 16)×(-
1 2 1 1 12 2 2)=-
×
×
=-
;
(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 16 16 163 3 3×
1 16 1 1 116 16 16×
1 2 1 1 12 2 2=-
;
(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 1 1 16 6 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 |
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 |
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 |
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. -
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.
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