9.99x2.22+3.33x3.34的简算怎么做

问题描述:

9.99x2.22+3.33x3.34的简算怎么做

9.99x2.22+3.33x3.34
=3.33x(3x2.22+1x3.34)
=3.33x(6.66+3.34)
=3.33x10
=33.3