1.5×1.6,用简便运算
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1.5×1.6,用简便运算
1.5×1.6,用简便运算
1.5×1.6,用简便运算
l.5×2×1.6÷2=2.4
原式=3/2*8/5
=24/10
= 2.4
3/2*8/5
1*(0.5*0.6)
1.5×(1+0.6)
1.5*1.5+1.5*0.1
=(1+0.5)*1.6
=1*1.6+0.5*1.6
=1.6+0.8
=2.4
2
1.5×1.6
=1.5×2×0.8
=3×0.8
=2.4