计算①﹣4²×5/8-﹙﹣5﹚÷2³×﹙﹣4﹚³ ②18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5 ③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/23 22:40:52
计算①﹣4²×5/8-﹙﹣5﹚÷2³×﹙﹣4﹚³ ②18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5 ③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3
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计算①﹣4²×5/8-﹙﹣5﹚÷2³×﹙﹣4﹚³ ②18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5 ③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3
计算①﹣4²×5/8-﹙﹣5﹚÷2³×﹙﹣4﹚³ ②18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5 ③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3

计算①﹣4²×5/8-﹙﹣5﹚÷2³×﹙﹣4﹚³ ②18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5 ③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3
①﹣4²×5/8-﹙-5﹚÷2³×﹙﹣4﹚³
=-16×5/8+5÷8×(-64)
=-10-40
=-50
②18+32÷﹙-2﹚³-﹙-4﹚²×5
=18+32÷(-8)-16×5
=18-4-80
=-66
③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3
=9-1/9+(-8)×3
=8又8/9-24
=-15又1/9

①﹣4²×5/8-﹙﹣5﹚÷2³×﹙﹣4﹚³ =-10-40=-50

②18+32÷﹙﹣2﹚³-﹙﹣4﹚²×5 =18-4-80=-66

③﹙﹣3﹚²-1/5×5/9+﹙﹣2﹚³×3=9-1/9-24=-118/3