9.99× 2.22+33.3×3.34怎么做?
展开全部
9.99× 2.22+33.3×3.34
=33.3x0.3× 2.22+33.3×3.34
=33.3x0.666+33.3×3.34
=33.3(0.666+3.34)
=33.3x4.006
=33.3(4+0.006)
=133.2+0.1998
=133.3998
=33.3x0.3× 2.22+33.3×3.34
=33.3x0.666+33.3×3.34
=33.3(0.666+3.34)
=33.3x4.006
=33.3(4+0.006)
=133.2+0.1998
=133.3998
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
9.99× 2.22+33.3×3.34
=3.33×3×2.22+3.33×10×3.34
=3.33×6.66+3.33×33.4
=3.33×(6.66+33.4)
=3.33×40.06
=3.33×40+3.33×0.06
=133.2+1.998
=135.198
=3.33×3×2.22+3.33×10×3.34
=3.33×6.66+3.33×33.4
=3.33×(6.66+33.4)
=3.33×40.06
=3.33×40+3.33×0.06
=133.2+1.998
=135.198
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
你好,这道题可以利用乘法分配律计算。先化简再求值,原式=3.33x3x2.22+3.33x3.34=3.33x(6.66+3.34)=3.33x10=33.3。
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询