5.26+(5.3-2.48)×0.7,简便
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5.26+(5.3-2.48)×0.7=5.26+0.72x0.7=5.26+0.504=5.764
咨询记录 · 回答于2023-04-19
5.26+(5.3-2.48)×0.7,简便
5.26+(5.3-2.48)×0.7=5.26+0.72x0.7=5.26+0.504=5.764
3.2-2.48=0.720.72x0.7=0.504
5.26+(5.3-2.48)×0.7=7.234
5.3-2.48=2.82
14-7.4÷12.5÷0.8简便
5.26+(5.3-2.48)×0.7=5.26+2.82x0.7=5.26+1.974=7.234
14-7.4÷12.5÷0.8简便
14-7.4÷12.5÷0.814-7.4÷(12.5x8)
14-7.4÷12.5÷0.814-7.4÷(12.5x8)=14-7.4÷100=14-0.074=13.926
14-7.4÷12.5÷0.814-7.4÷(12.5x0.8)=14-7.4÷10=14-0.74=13.26