16.12×9.9+1.612用简便算法怎麽计算?
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![16.12×9.9+1.612用简便算法怎麽计算?](/uploads/image/z/432700-52-0.jpg?t=16.12%C3%979.9%2B1.612%E7%94%A8%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E6%80%8E%E9%BA%BD%E8%AE%A1%E7%AE%97%3F)
16.12×9.9+1.612用简便算法怎麽计算?
16.12×9.9+1.612用简便算法怎麽计算?
16.12×9.9+1.612用简便算法怎麽计算?
16.12×9.9+1.612
=16.12×9.9+16.12×0.1
=16.12×(9.9+0.1)
=16.12×10
=161.2
16.12×9.9+1.612
=16.12×10 - 1.612 +1.612
=161.2
=16.12*9.9+16.12*0.1 =16.12(9.9+0.1) =16.12*10 =161.2