问题
解答题
0.389×468+389×0.658-38.9×1.26．
答案
0.389×468+389×0.658-38.9×1.26，
=38.9×4.68+38.9×6.58-38.9×1.26，
=38.9×（4.68+6.58-1.26），
=38.9×10，
=389．
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0.389×468+389×0.658-38.9×1.26．
0.389×468+389×0.658-38.9×1.26，
=38.9×4.68+38.9×6.58-38.9×1.26，
=38.9×（4.68+6.58-1.26），
=38.9×10，
=389．