问题补充说明：(20+9.744÷2.4）×0.5-1.93简便没简便的以此计算6.25÷0.25×4 2.8÷1.25 7.6×3.3+7.6×6.7+0.76-1
(20+9.744÷2.4）×0.5-1.93=10.16.25÷0.25×4=6.25*4*4来自=1002.8÷1.25=14/5*4/5=56/25=56*4/2360问答5*4=2.247.6×3.3+7.6×6.7+0.76-1=7.6*(3.3+6.7)+0.76-1=76+0.76-1=75.首76
(20+9.往市黄头一744÷2.4）×0.5-1.93简便没简便的以此计算6.25÷0....
jacky
2024-06-29 17:25
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