Some equations have been solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
If 9 × 3 = 72, 9 × 5 = 54, then 9 × 10 = ?1
09
2
90
3
999
4
99
Some equations have been solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
If 9 × 3 = 72, 9 × 5 = 54, then 9 × 10 = ?