987 = 9 . 102 + 8 . 10 + 7;
2564 = 2 . 103 + 5 . 102 + 6 . 10 + 4;
abcde = a . 104 + b . 103 + c . 102 + d . 10 + e
987 = 9 . 102 + 8 . 10 + 7;
2564 = 2 . 103 + 5 . 102 + 6 . 10 + 4;
abcde = a . 104 + b . 103 + c . 102 + d . 10 + e
987 = 9 . 102 + 8 . 101 + 7 . 100
2564 =2 . 103 + 5 . 102 + 6 . 101 + 4 . 100
abcde = a . 104 + b . 103 + c . 102 + d . 101 + e . 100