Use a loop to create a list of 10 random numbers between -100 and 100.
Loop through the list of numbers and switch each number to its opposite sign. Negatives become positives, positives become negatives.
numbers: [10, -36, 6, -39, -96, 13, -35, 83, -52, 86]
flipped: [-10, 36, -6, 39, 96, -13, 35, -83, 52, -86]