0.7乘以11分之3减去6.6乘以7分之3减去1.1乘以7分之3加上0.7乘以11分之8等于?
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0.7×﹙3/11﹚-6.6×﹙3/7﹚-1.1×﹙3/7﹚+0.7×﹙8/11﹚=﹙3/11+8/11﹚×0.7-﹙6.6+1.1﹚×﹙3/7﹚=0.7-3.3=﹣2.6
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0.7x3/11-6.6x3/7-1.1x3/7+0.7x8/11
=0.7x3/11+0.7x8/11-(6.6x3/7+1.1x3/7)
=0.7x(3/11+8/11)-(6.6+1.1)x3/7
=0.7x1-7.7x3/7
=0.7-3.3
=-2.6
=0.7x3/11+0.7x8/11-(6.6x3/7+1.1x3/7)
=0.7x(3/11+8/11)-(6.6+1.1)x3/7
=0.7x1-7.7x3/7
=0.7-3.3
=-2.6
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