0.87×2.3+8.7×77简便运算怎么简便运算那?
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![0.87×2.3+8.7×77简便运算怎么简便运算那?](/uploads/image/z/61852-4-2.jpg?t=0.87%C3%972.3%2B8.7%C3%9777%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%E9%82%A3%EF%BC%9F)
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0.87×2.3+8.7×77简便运算怎么简便运算那?
0.87×2.3+8.7×77简便运算
怎么简便运算那?
0.87×2.3+8.7×77简便运算怎么简便运算那?
0.87×2.3+8.7×77
=0.87×2.3+0.87×770
=0.87×(2.3+770)
=0.87×772.3
=671.901
0.87×2.3+8.7×77
=0.87×2.3+0.87×10×77
=0.87×(2.3+10×77)
=0.87×772.3