Final answer:
The numbers ordered from least to greatest are -6, -3, 1, 5.
Step-by-step explanation:
To put the numbers in order from least to greatest, we need to understand that negative numbers are less than positive numbers, and among negative numbers, the one with the smaller absolute value is greater. The numbers given are (-3, 5, 1, -6). Looking at these, we can see that -6 is smaller than -3, which is smaller than 1, which is smaller than 5.
The ordered list from least to greatest is: -6, -3, 1, 5.