12345679 x 72 = ?
88888888
888888888
898989898
9999999998
Explanation:
12345679 x 72= 12345679 x (70 +2)
= 12345679 x 70 + 12345679 x 2
= 864197530 + 24691358
= 888888888
Next Question
Which one of the following is the common factor of (4743 + 4343) and (4747 + 4347) ?