数学题:求括号里的数:列竖式计算()()() X ()() = 5()()+ ()()4= ()0()6急!!!!!!
2019-05-28
数学题:求括号里的数:列竖式计算
()()()
X ()()
= 5()()
+ ()()4
= ()0()6
急!!!!!!
优质解答
(5)(7).(2)
* (1)(0)
= 5(7)(2)
+ (4)(5)4
=(1)0(2)6
即
57.2
* 1 0
= 57 2
+ 45 4
=102 6
即
57.2*10=572
572+454=1026
(5)(7).(2)
* (1)(0)
= 5(7)(2)
+ (4)(5)4
=(1)0(2)6
即
57.2
* 1 0
= 57 2
+ 45 4
=102 6
即
57.2*10=572
572+454=1026