Question

简便计算99.9x111十33.3×66.7？

Answer 1

99.9*111+33.3*66.7=33.3*（3*111+66.7）=33.3*（333+66.7）=33.3*399.7=13310.01

Answer 2

99.9×111+33.3×66.7
=33.3×3×111+33.3×66.7
=33.3×333+33.3×66.7
=33.3× （333+66.7）
=33.3×399.7
=33.3×（400-0.3）
=33.3×400-33.3×0.3
=13320-9.99
=13310.01

Answer 3

原式＝33.3x3x111十33.3x66.7
＝33.3（333十66.7）
＝33.3x399.7
＝33.3x（400一0.3）
＝33.3x400一33.3x0.3
＝13320一9.99
＝13310.01

Answer 4

这道题的简便计算具体过程如下：
99.9x11.1+33.3x66.7
＝33.3x33.3+33.3x66.7
＝33.3x（33.3+66.7）
＝33.3x100
＝3330

Answer 5

=33.3×3×111+33.3×66.7
=33.3×（333+66.7）
=33.3×399.7
=33.3×（400-0.3）
=33.3×400-33.3×0.3
=13320-9.99
=13320-（10-0.01）
=13320-10+0.01
=13310+0.01
=13310.01