1.67 + 0.167 + 0.0167 + 16.7 + 6.0017 = ?

To add decimals, first rewrite every number with the same number of decimal places (padding with trailing zeros so the place values line up), then add column by column from the right just as with whole numbers, carrying over into the next column whenever a column's total is 10 or more.

Applying this to the given sum:

1. Write every term to four decimal places so the place values align: 1.6700, 0.1670, 0.0167, 16.7000, and 6.0017.

2. Add the first two terms: 1.6700 + 0.1670 = 1.8370.

3. Add the third term: 1.8370 + 0.0167 = 1.8537.

4. Add the fourth term: 1.8537 + 16.7000 = 18.5537.

5. Add the last term: 18.5537 + 6.0017 = 24.5554.

Cross-check by rounding each term to the nearest whole number first: 2 + 0 + 0 + 17 + 6 = 25. This is close to 24.5554, and the small difference matches the net effect of the rounding adjustments made to each term, confirming the precise total is correct.

So the sum equals 24.5554.