Put the following number in ascending order 12,10,-8,0,-2,5

-8, -2, 0, 5, 10, 12

To put the numbers in ascending order, we arrange them from smallest to largest:

-8, -2, 0, 5, 10, 12

Therefore, the numbers in ascending order are: -8, -2, 0, 5, 10, 12.