752 ×1.25+44.5 ×1.25+3.5 ×1.25=(752+44.5+3.5)×1.25=1000
40 ×1.6+36 ×1.6—31 ×2 ×1.6=(40+36-62)×1.6=22.4
(1+80)×(80÷2)+0.625 ×80=3290還有兩條呢?不是一共3道題嗎?
簡(jiǎn)便方法計(jì)算 1.625+2.625+3.625+······+79.625+80.625
簡(jiǎn)便方法計(jì)算 1.625+2.625+3.625+······+79.625+80.625
簡(jiǎn)便方法計(jì)算以下各題:752*1.25+4.45*12.5+0.035*125
0.4*160+36*1.6-31*3.2
1.625+2.625+3.625+······+79.625+80.625(寫出過(guò)程)
簡(jiǎn)便方法計(jì)算以下各題:752*1.25+4.45*12.5+0.035*125
0.4*160+36*1.6-31*3.2
1.625+2.625+3.625+······+79.625+80.625(寫出過(guò)程)
數(shù)學(xué)人氣:904 ℃時(shí)間:2019-08-18 20:30:49
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