10.76-0.83+1.24-4.17 3.5/ - 知识问答

10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算

5个回答

10.76-0.83+1.24-4.17
=(10.76+1.24)-(0.83+4.17)
=12-5
=7
3.5/0.56
=3.5÷(0.7×0.8)
=3.5÷0.7÷0.8
=5÷0.8
=6.25
45/0.18
=45÷（0.9×0.2）
=45÷0.9÷0.2
=50÷0.2
=250
81.3-81.3x0.9
=81.3×(1-0.9)
=81.3×0.1
=8.13

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