81 9*9=8181
9² = 9 × 9 = 81
9
9 x 9 = 81 because if you count 9 times it would make up or be 81
-9 squared = 81(-9)^2 = (-9) * (-9) = 81
9x9=81
81 can be divided by 9 nine times. 9/81 = 1/9 (9 x 9 = 81)
1, 3, 9, 27, 81. 1 x 81 = 81, 3 x 27 = 81, 9 x 9 = 81.
9
yes,9 goes into 81:9 times
81 is a perfect square. 9 x 9 = 81
The square number of 81 is 9. 9 x 9 = 81