9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9000000000000 = 9000000000072
k nha, đau mắt quá
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9000000000000 =
=(9 x 8) + 9000000000000
=72 + 9000000000000
=9000000000072 tk mình nha
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9000000000000
= 9 x 8 + 9000000000000
= 72 + 9000000000000
= 9000000000072
Số cần tìm là :
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9000000000000 = 9000000000072
Đ/s : 9000000000072