Question

82.1×11-82.1简便运算？

Answer 1

简便计算过程如下
82.1×11-82.1
=82.1×11-82.1×1
=82.1×（11-1）
=82.1×10
=821
望采纳

Answer 2

82.1×11-82.1
=82.1x(11-1)
=82.1x10
=821

Answer 3

计算如下：
82.1×11-82.1
=82.1×(11-1)
=82.1×10
=821

Answer 4

82.1*11-82.1
=82.1(11-1)
=82.1*10
=821