作业帮[﹙﹣6﹣9/2﹚÷19/4]÷[﹙2﹣10/3﹚×6/5] ﹙﹣2.3﹚×﹙＋3.85﹚＋﹙﹣4.3﹚×﹙3.85﹚＋
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/04/29 05:23:48
[﹙﹣6﹣9/2﹚÷19/4]÷[﹙2﹣10/3﹚×6/5] ﹙﹣2.3﹚×﹙＋3.85﹚＋﹙﹣4.3﹚×﹙3.85﹚＋8×77/20（要过
[﹙﹣6﹣9/2﹚÷19/4]÷[﹙2﹣10/3﹚×6/5]
=[﹙﹣21/2﹚×4/19]÷[﹙-4/3﹚×6/5]
=[﹣42/19]÷[-8/5]
=(-42/19)×(-5/8)
=210/152
﹙﹣2.3﹚×﹙＋3.85﹚＋﹙﹣4.3﹚×﹙3.85﹚＋8×77/20
=﹣2.3×3.85﹣4.3×3.85＋8×3.85
=(﹣2.3﹣4.3＋8)×3.85
=1.4×3.85
=0.7*7.7
=5.39
=[﹙﹣21/2﹚×4/19]÷[﹙-4/3﹚×6/5]
=[﹣42/19]÷[-8/5]
=(-42/19)×(-5/8)
=210/152
﹙﹣2.3﹚×﹙＋3.85﹚＋﹙﹣4.3﹚×﹙3.85﹚＋8×77/20
=﹣2.3×3.85﹣4.3×3.85＋8×3.85
=(﹣2.3﹣4.3＋8)×3.85
=1.4×3.85
=0.7*7.7
=5.39
﹙﹣5﹚平方×﹙﹣3/5﹚＋32÷﹙﹣2﹚立方×﹙﹣1又4分之1﹚=
﹣2＋﹙1－0.2×5分之3﹚÷﹙﹣2﹚
﹣2＋﹙1－0.2÷5分之3﹚×﹙﹣3﹚
4×﹙﹣3﹚的平方－5×﹙﹣3﹚＋6
1、﹙3分之1＋4分之1－6分之1﹚×24 2、﹙－4﹚×﹙﹣5﹚×0.25 3、100×﹙﹣3﹚×﹙﹣5﹚×0.01
42×﹙﹣3分之2﹚＋﹙﹣4分之3﹚÷﹙﹣4分之1﹚
﹙﹣3/4＋7/12－5/9﹚÷﹙﹣1/36﹚=
计算①﹣4²×5／8－﹙﹣5﹚÷2³×﹙﹣4﹚³ ②18＋32÷﹙﹣2﹚³－﹙﹣
﹙﹣0.25﹚的99次方×﹙﹣4﹚的100次方＋0.5－3分之2÷﹙﹣3分之1﹚×﹙﹣2﹚的立方
﹣5＋（﹣0.2×3/5﹚÷﹙﹣2﹚³－﹙2－5﹚²
﹣1的5次方－2又3分之1＋4又5分之1÷﹙﹣3﹚×﹙﹣21分之5﹚
﹣﹙﹣1﹚的4次方-﹙1-2分之1﹚÷﹙3﹚×[2-﹙﹣3﹚的平方]