Arrange the following sets of integers in order from least to greatest: \[ -12,10,-8,20 \]

Step 1 ：Arrange the following sets of integers in order from least to greatest: -12,10,-8,20

Step 2 ：The question is asking to arrange the given set of integers in ascending order. This means we need to sort the numbers from the smallest to the largest.

Step 3 ：The integers arranged from least to greatest are \(\boxed{-12, -8, 10, 20}\).