What operation would you use to get 12 if you use 10 four times?

To get 12 using the number 10 four times, you can use the operation of addition and division. For example, you can add 10 + 10 to get 20, and then divide that sum by 10, and finally multiply by 10 and divide by 10 again to maintain the use of four tens. However, a simpler approach would be to consider using the average: (10 + 10 + 10 + 10) / 4 = 10, but you can adjust the operations to achieve 12 if necessary.