搜搜做题作业网(99×99+99)÷99有什么简便运算
来源：学生作业帮 编辑：搜搜做题作业网作业帮 分类：数学作业 时间：2024/05/03 18:15:49
(99×99+99)÷99有什么简便运算
(99×99+99)÷99
=【99×（99+1）】÷99
=9900÷99
=100
再问： (90.75��6.6+2.2)��0.6
再答： (90.75��6.6+2.2)��0.6 =90.75��0.6��6.6+2.2��0.6 =54.45��6.6+1.32 =0.825+1.32 =2.145
再问： ��ˬ
=【99×（99+1）】÷99
=9900÷99
=100
再问： (90.75��6.6+2.2)��0.6
再答： (90.75��6.6+2.2)��0.6 =90.75��0.6��6.6+2.2��0.6 =54.45��6.6+1.32 =0.825+1.32 =2.145
再问： ��ˬ