简算:7142.85/3.7/2.7/1.7*0.7
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简算:7142.85/3.7/2.7/1.7*0.7简算:7142.85/3.7/2.7/1.7*0.7简算:7142.85/3.7/2.7/1.7*0.7是乘以1.7吧?否则都除不尽了法一:把714
简算:7142.85/3.7/2.7/1.7*0.7
简算:7142.85/3.7/2.7/1.7*0.7
简算:7142.85/3.7/2.7/1.7*0.7
是乘以1.7吧?否则都除不尽了
法一:把7142.85分解质因数即得7142.85=3*3*3*5*11*13*37*0.01=5*11*13*27*37*0.01
7142.85÷3.7÷2.7×1.7×0.7
=5×11×13×27×37×0.01÷3.7÷2.7×1.7×0.7
=5×11×13×27×37÷37÷27×1.7×0.7
=5×11×13×1.7×0.7
=850.85
法二:
7142.85÷3.7÷2.7×1.7×0.7
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
简算:7142.85/3.7/2.7/1.7*0.7
7142.85/3.7/2.7*1.7*0.7是多少
7142.85÷3.7÷2.7×1.7×0.7对不起,是简算,
计算题:7142.85÷3.7÷2.7×1.7×0.7=?
7142.85除以3.7除以2.7乘以1.7乘以0.7
7142.85÷3.7÷2.7×1.7×0.7是奥赛简算题
7142.85÷3.7÷2.7×1.7×0.7=(要巧算)
2.7×3.7+0.37×73 简算
7142.85除以3.7除以2.7乘以1.7乘以0.7等于多少?
7142.85÷3.7÷2.7×1.7×0.799×1.01×77.78+66.66×33.33
2.7×3.7+0.37×73 简算
简算2.7*6.3+2.7*3.7 速度回答!奖励有的!
⑴ 7142.85÷3.7÷2.7×1.7×0.7⑵ 4.83×0.59+0.41×1.59+0.324×5.9⑶ 99×1.01×77.78+66.66×33.33⑷ 37.4×2.7+499×0.73+12.5×0.7
1、 0.525÷13.125÷4×85.2 2、 7142.85÷3.7÷2.7×1.7×0.73、 1+2-3+4+5-6+7+8+9+10+11-12+……+97+98-99最好写出怎么简便和综合算式!是加九 在世界外国语中学里的题目是+9 如果不能做就说 我加了五分
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