小数简便运算9.6乘88.4减88.4减8.6求简便运算

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 13:28:40
小数简便运算9.6乘88.4减88.4减8.6求简便运算

小数简便运算9.6乘88.4减88.4减8.6求简便运算
小数简便运算
9.6乘88.4减88.4减8.6
求简便运算

小数简便运算9.6乘88.4减88.4减8.6求简便运算
=(9.6-1)*88.4-8.6
=8.6*88.4-8.6
=8.6*(88.4-1)
=8.6*87.4
=751.64
乘法分配律的应用吧

9.6*88.4-88.4-8.6
=88.4*(9.6-1)-8.6
=8.6*(88.4-1)
=8.6*87.4
=751.64

9.6*88.4-88.4-8.6
=88.4*(9.6-1)-8.6
=88.4*8.6-8.6
=8.6*(88.4-1)
=8.6*87.4
=751.64

(1+8.6)*88.4-88.4-8.6=8.6*88.4-8.6=8.6*(1+87.4)-8.6=8.6*87.4=751.64

9.6*88.4-88.4-8.6
=88.4*(9.6-1)-8.6
=88.4*8.6-8.6
=8.6*(88.4-1)
=8.6*87.4
=751.64