(2.65+2.77)/(1.98-0.98)怎么简便计算
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(2.65+2.77)/(1.98-0.98)怎么简便计算(2.65+2.77)/(1.98-0.98)怎么简便计算(2.65+2.77)/(1.98-0.98)怎么简便计算(2.65+2.77)/(
(2.65+2.77)/(1.98-0.98)怎么简便计算
(2.65+2.77)/(1.98-0.98)怎么简便计算
(2.65+2.77)/(1.98-0.98)怎么简便计算
(2.65+2.77)/(1.98-0.98）
=【2.62+（0.03+2.77）】/【（1+0.98）-0.98】
=【2.62+2.8】/【1-（0.98-0.98）】
=5.42/1
=5.42
=5.42/1=5.42
=5.42/1
=5.42
﹙2.65＋2.77﹚÷﹙1.98－0.98﹚
＝﹙2.65＋2.77﹚÷1
＝2.65＋3－0.23
＝5.65－0.23
＝5.42