Question

( )( )5×4( )=( )2( )( )( ) 在括号里填上合适的数字

Answer 1

用试值法：从最小开始
(2 )( 4)5×4( 9)=(1 )2(0 )( 0)(5 )
( 2)( 5)5×4( 8)=(1 )2( 2)(4 )( 0)
( 2)(5 )5×4(9 )=( 1)2(4 )(9 )(5 )
( 2)( 6)5×4(6 )=(1 )2( 1)(9 )( 0)
(2 )( 6)5×4(7 )=(1 )2(4 )( 5)( 5)
(2 )(6 )5×4(8 )=( 1)2(7 )( 2)(0 )
( 2)( 6)5×4(9 )=(1 )2( 9)( 8)( 5)
(2 )(7 )5×4(4 )=(1 )2( 1)( 0)( 0)
(2 )( 7)5×4(5 )=(1 )2( 3)( 7)(5 )
( 2)(7 )5×4(6 )=(1 )2(6 )( 5)( 0)
( 2)( 7)5×4(7 )=(1 )2(9 )(2 )(5 )
( 2)(8 )5×4(3 )=(1 )2(2 )(5 )( 5)
( 2)( 8)5×4(4 )=( 1)2( 5)(4 )(0 )
(2 )(8 )5×4(5 )=( 1)2( 8)( 2)( 5)
( 2)(9 )5×4(1 )=( 1)2(0 )( 9)( 5)
( 2)( 9)5×4( 2)=( 1)2(3 )(9 )(0 )
( 2)( 9)5×4(3 )=(1 )2(6 )(8 )(5 )
(2 )(9 )5×4(4 )=( 1)2(9 )(8 )(0 )
( 3)( 0)5×4( 0)=( 1)2( 2)( 0)(0 )
( 3)(0 )5×4(1 )=(1 )2( 5)(0 )(5 )
(3 )(0 )5×4( 2)=(1 )2( 8)(1 )(0 )
(3 )( 1)5×4( 1)=(1 )2( 9)( 1)( 5)

Answer 2

有好几种呢
315*41=12915
305*41=12505
305*42=12810
315*40=12600
295*42=12390
285*45=12825
275*47=12925......

Answer 3

12百度地图

本数据来源于百度地图，最终结果以百度地图最新数据为准。

Answer 4

245*49