To place the numbers in order as you would see on a number line, we need to identify their values:
- -13.1 (negative, far left)
- -2.99 (still negative, but closer to zero)
- 0.199 (positive and small)
- 5.6 (positive)
- 6 1/2 (which is equal to 6.5, also positive and larger than 5.6)
Putting them in order from smallest to largest, we get:
-13.1, -2.99, 0.199, 5.6, 6.5 (or 6 1/2)