Subtract decimals including negatives

Line up the decimal points to add or subtract. The sign rules are the same as for integers.

1. Evaluate: 1.9 − 3.0
2. Evaluate: 7.5 − 2.5
3. Evaluate: −3.2 − (−8.0)
4. Evaluate: −4.3 − 6.6
5. Evaluate: 13.1 − 14.8
6. Evaluate: 8.0 − (−13.4)
7. Evaluate: −15.0 − 6.2
8. Evaluate: −13.3 − (−8.0)
9. Evaluate: −6.1 − (−10.13)
10. Evaluate: −11.4 − (−1.99)
11. Evaluate: −19.1 − (−9.26)
12. Evaluate: −10.5 − (−18.11)
13. Evaluate: 18.1 − 33.70
14. Evaluate: −1.2 − (−20.81)
15. Evaluate: 30.0 − (−10.07)
16. Evaluate: 28.4 − 11.37
17. Evaluate: −56.6 − (−49.62)
18. Evaluate: −41.9 − (−41.27)
19. Evaluate: −52.1 − (−5.47)
20. Evaluate: 32.1 − 8.35