如何解下列分数简便运算?求高手解!答对了追加100分,我有的是分!138*1 1/4+23.3*(2-1/4)-38*1.25+(1+0.25)*28.7752*1又1/4+4.45*12又1/2+0.035*1257又4480/8333÷21943/25909÷1又18556/3525514又2345/2907÷7267/9747*221/4389
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![如何解下列分数简便运算?求高手解!答对了追加100分,我有的是分!138*1 1/4+23.3*(2-1/4)-38*1.25+(1+0.25)*28.7752*1又1/4+4.45*12又1/2+0.035*1257又4480/8333÷21943/25909÷1又18556/3525514又2345/2907÷7267/9747*221/4389](/uploads/image/z/15255769-49-9.jpg?t=%E5%A6%82%E4%BD%95%E8%A7%A3%E4%B8%8B%E5%88%97%E5%88%86%E6%95%B0%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%3F%E6%B1%82%E9%AB%98%E6%89%8B%E8%A7%A3%21%E7%AD%94%E5%AF%B9%E4%BA%86%E8%BF%BD%E5%8A%A0100%E5%88%86%2C%E6%88%91%E6%9C%89%E7%9A%84%E6%98%AF%E5%88%86%21138%2A1+1%2F4%2B23.3%2A%282-1%2F4%29-38%2A1.25%2B%281%2B0.25%29%2A28.7752%2A1%E5%8F%881%2F4%2B4.45%2A12%E5%8F%881%2F2%2B0.035%2A1257%E5%8F%884480%2F8333%C3%B721943%2F25909%C3%B71%E5%8F%8818556%2F3525514%E5%8F%882345%2F2907%C3%B77267%2F9747%2A221%2F4389)
如何解下列分数简便运算?求高手解!答对了追加100分,我有的是分!138*1 1/4+23.3*(2-1/4)-38*1.25+(1+0.25)*28.7752*1又1/4+4.45*12又1/2+0.035*1257又4480/8333÷21943/25909÷1又18556/3525514又2345/2907÷7267/9747*221/4389
如何解下列分数简便运算?求高手解!答对了追加100分,我有的是分!
138*1 1/4+23.3*(2-1/4)-38*1.25+(1+0.25)*28.7
752*1又1/4+4.45*12又1/2+0.035*125
7又4480/8333÷21943/25909÷1又18556/35255
14又2345/2907÷7267/9747*221/4389
如何解下列分数简便运算?求高手解!答对了追加100分,我有的是分!138*1 1/4+23.3*(2-1/4)-38*1.25+(1+0.25)*28.7752*1又1/4+4.45*12又1/2+0.035*1257又4480/8333÷21943/25909÷1又18556/3525514又2345/2907÷7267/9747*221/4389
138*1 1/4+23.3*(2-1/4)-38*1.25+(1+0.25)*28.7(第一个是什么符号)
752*1又1/4+4.45*12又1/2+0.035*125
=752*1.25+4.45*10*1.25+3.5*1.25
=(752+44.5+3.5)*1.25
=800*1.25
=1000
7又4480/8333÷21943/25909÷1又18556/35255(分段写清楚)
14又2345/2907÷7267/9747*221/4389(加括号,方便辨别)