Question

2.73乘99=？ 简便脱式计算，又称递等式计算

Answer 1

 

Answer 2

=2.73×（100-1） =2.73×100-2.37×1 =273-2.73 =270.27

追答

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Answer 3

2.73x(100-1） =273-2.73 =270.27

Answer 4

2.73×（100-1）
=273-2.73
=270.27

Answer 5

=2.73x100-2.73=270.27