1*9+2 9*9+7
12*9+3 98*9+6
123*9+4 987*9+5
1234*9+5 9876*9+4
将公因数9提出后,两个数的和都是整数.
1*9+2 9*9+7 =9*(1+29)+7=277
12*9+3 98*9+6 =9*(12+398)=3606
123*9+4 987*9+5=9*(123+4987)=4505
1234*9+5 9876*9+4=9*(1234+59876)=540004
12345*9+6 98765*9+3=9*(12345+698765)=6300003
1234*9+59876*9+4
补充:
1234*9+5=11111
9876*9+4=88888
1*9+2 9*9+7
12*9+3 98*9+6
123*9+4 987*9+5
1234*9+5 9876*9+4
1234*9+5=11111 9876*9+4=88888
1234*9+5 9876*9+4