简算:57.85-(7.82+4.69)-5.31 18.5+12.5÷0.25-3.05 5.78÷2.5÷0.04÷2
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/01 03:46:05
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简算:57.85-(7.82+4.69)-5.31 18.5+12.5÷0.25-3.05 5.78÷2.5÷0.04÷2
简算:57.85-(7.82+4.69)-5.31 18.5+12.5÷0.25-3.05 5.78÷2.5÷0.04÷2
简算:57.85-(7.82+4.69)-5.31 18.5+12.5÷0.25-3.05 5.78÷2.5÷0.04÷2
57.85-(7.82+4.69)-5.31
=57.85-7.82-(4.69+5.31)
=50.03-10
=40.03
18.5+12.5÷0.25-3.05
=18.5+50-3.05
=68.5-3.05
=65.45
5.78÷2.5÷0.04÷2
=5.78÷2÷(2.5x0.04)
=2.89÷0.1
=28.9
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