四道简便运算 高手请进!有些除法是分数,要写简便过程!!!!!!!!!!!1、4.25/5+2.5*0.2+5.25*0.22、10/3/4+7*0.25+25/3*0.253、2.5/(5/3)+5.25*0.6+0.6*(9/4)4、(2+1/3)*(6.75-2-5/6)-(11/12)/(3
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![四道简便运算 高手请进!有些除法是分数,要写简便过程!!!!!!!!!!!1、4.25/5+2.5*0.2+5.25*0.22、10/3/4+7*0.25+25/3*0.253、2.5/(5/3)+5.25*0.6+0.6*(9/4)4、(2+1/3)*(6.75-2-5/6)-(11/12)/(3](/uploads/image/z/1740267-27-7.jpg?t=%E5%9B%9B%E9%81%93%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97+%E9%AB%98%E6%89%8B%E8%AF%B7%E8%BF%9B%21%E6%9C%89%E4%BA%9B%E9%99%A4%E6%B3%95%E6%98%AF%E5%88%86%E6%95%B0%EF%BC%8C%E8%A6%81%E5%86%99%E7%AE%80%E4%BE%BF%E8%BF%87%E7%A8%8B%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%811%E3%80%814.25%2F5%2B2.5%2A0.2%2B5.25%2A0.22%E3%80%8110%2F3%2F4%2B7%2A0.25%2B25%2F3%2A0.253%E3%80%812.5%2F%EF%BC%885%2F3%EF%BC%89%2B5.25%2A0.6%2B0.6%2A%EF%BC%889%2F4%EF%BC%894%E3%80%81%EF%BC%882%2B1%2F3%EF%BC%89%2A%EF%BC%886.75-2-5%2F6%EF%BC%89-%EF%BC%8811%2F12%EF%BC%89%2F%EF%BC%883)
四道简便运算 高手请进!有些除法是分数,要写简便过程!!!!!!!!!!!1、4.25/5+2.5*0.2+5.25*0.22、10/3/4+7*0.25+25/3*0.253、2.5/(5/3)+5.25*0.6+0.6*(9/4)4、(2+1/3)*(6.75-2-5/6)-(11/12)/(3
四道简便运算 高手请进!
有些除法是分数,要写简便过程!!!!!!!!!!!
1、4.25/5+2.5*0.2+5.25*0.2
2、10/3/4+7*0.25+25/3*0.25
3、2.5/(5/3)+5.25*0.6+0.6*(9/4)
4、(2+1/3)*(6.75-2-5/6)-(11/12)/(3/7)
四道简便运算 高手请进!有些除法是分数,要写简便过程!!!!!!!!!!!1、4.25/5+2.5*0.2+5.25*0.22、10/3/4+7*0.25+25/3*0.253、2.5/(5/3)+5.25*0.6+0.6*(9/4)4、(2+1/3)*(6.75-2-5/6)-(11/12)/(3
1、4.25/5+2.5*0.2+5.25*0.2
=(4.25+2.5+5.25)*0.2
=12*0.2
=2.4
2、10/3/4+7*0.25+25/3*0.25
=(10/3+7+25/3)*1/4
=56/3*1/4
=14/3
3、2.5/(5/3)+5.25*0.6+0.6*(9/4)
=(2.5+5.25+2.25)*0.6
=10*0.6
=6
4、(2+1/3)*(6.75-2-5/6)-(11/12)/(3/7)
=7/3*3又11/12-11/12*7/3
=7/3*(3又11/12-11/12)
=7/3*3
=7
1/7×3/4+3/7×1/6+6/7×1/12
-3+5-7+9-11.....+97-99等于多少
103乘以87减去29乘以9
927除75除2除2
(1.9-1.9*0.9)/(3.8-2.8)