L = 2015 . 102
= 2015 x 100 + 2015 x 2
= 201500 + 4030
= 205530
M = 998 x 45
= 1000 x 45 - 2 x 45
= 45000 - 90
= 44910
L = 2015 . 102
= 2015 x 100 + 2015 x 2
= 201500 + 4030
= 205530
M = 998 x 45
= 1000 x 45 - 2 x 45
= 45000 - 90
= 44910
L = 2015 . 102
= 2015 x 100 + 2015 x 2
= 201500 + 4030
= 205530
M = 998 x 45
= 1000 x 45 - 2 x 45
= 45000 - 90
= 44910
Ta có :
L = 2015 . 102
= 2015 x 100 + 2015 x 2
= 201500 + 4030
= 205530
M = 998 x 45
= 1000 x 45 - 2 x 45
= 45000 - 90
= 44910