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计算能简的要简算80.3-3.62-1.3838×[89÷﹙56+34﹚]74×1.25×57×8=716×40-516×40=
题目详情
计算能简的要简算
80.3-3.62-1.38
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×1.25×
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7 7 4 4
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5 5 7 7
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7 7 16 16
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5 5 16 16
80.3-3.62-1.38
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▼优质解答
答案和解析
（1）80.3-3.62-1.38=80.3-（3.62+1.38）=80.3-5=75.3；（2）38×[89÷﹙56+34﹚]=38×[89÷1912]=38×89×1219=419；（3）74×1.25×57×8=（74×57）×（1.25×8）=54×10=252；（4）716×40-516×40=（716-516）...
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