12345+135+24=12504
1234567+1357+246=1236170
K mk nha,socola tình yeu se k lại
12345+135+24 = 12504
1234567+1357+246 = 1236170
12345 + 135 + 24 = ( 12345 + 135 ) + 24
= 12480 + 24
= 12504
1234567 + 1357 + 246 = ( 1234567 + 1357 ) + 246
= 1235924 + 246
= 1236170
k nha