发布人:繁体字网(www.fantiz5.com) 发布时间:2015-08-30 07:30:00
试题原文 |
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(0.75×42.7+57.3-0.573×25)÷3×7972, =(0.75×42.7+57.3-57.3×0.25)÷3×7972, =[0.75×42.7+57.3×(1-0.25)]÷3×7972, =[0.75×42.7+57.3×0.75]÷3×7972, =[0.75×(42.7+57.3)]÷3×7972, =0.75×100÷3×7972, =75÷3×7972, =25×7972, =25×(4×1993), =25×4×1993, =100×1993, =199300. 故答案为:199300. |
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