8.6*2.7+8.6*5.5+1.4*8.2简便算法
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8.6*2.7+8.6*5.5+1.4*8.2简便算法8.6*2.7+8.6*5.5+1.4*8.2简便算法8.6*2.7+8.6*5.5+1.4*8.2简便算法8.6×2.7+8.6×5.5+1.4
8.6*2.7+8.6*5.5+1.4*8.2简便算法
8.6*2.7+8.6*5.5+1.4*8.2简便算法
8.6*2.7+8.6*5.5+1.4*8.2简便算法
8.6×2.7+8.6×5.5+1.4×8.2
=8.6×(2.7+5.5)+1.4×8.2
=8.6×8.2+1.4×8.2
=(8.6+1.4)×8.2
=10×8.2
=82
8.6*2.7+8.6*5.5+1.4*8.2简便算法
简算:86×0.27+8.2×1.4+5.5×8.6,
8又五分之三*2.7+6.2*1.4+3.5*8.6
(x+2)-8.6=1.4
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8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79
(6)0.5x-0.6=0.7x-1.4+8.6