1、•将0.83拆分为8.3和0.1
8.3×9.9 + 0.83
=8.3×9.9+8.3×0.1

2、•合并8.3,将9.9和0.1相加
8.3×9.9+8.3×0.1
=8.3×(9.9+0.1)

3、•经过运算,最后结果为83

4、整个运算过程

1、•将0.83拆分为8.3和0.1
8.3×9.9 + 0.83
=8.3×9.9+8.3×0.1

2、•合并8.3,将9.9和0.1相加
8.3×9.9+8.3×0.1
=8.3×(9.9+0.1)

3、•经过运算,最后结果为83

4、整个运算过程
