Let's order the numbers given in each group from least to greatest.
Group 1:
- Original Numbers: -82, -74, -99, -72, -91, -87, -76
- Ordered: -99, -91, -87, -82, -76, -74, -72
Group 2:
- Original Numbers: 2.62, 4.62, 6.42, 2.64, 2.46, 6.24, 4.26
- Ordered: 2.46, 2.62, 2.64, 4.26, 4.62, 6.24, 6.42
Group 3:
- Original Numbers: -11, -9, -13.5, -8.8, -10.1, -13, -11.3
- Ordered: -13.5, -13, -11.3, -11, -10.1, -9, -8.8
Group 4:
- Original Numbers: 22, 2.2, 0.22, 2.02, 2.12, 220, 2.22
- Ordered: 0.22, 2.02, 2.12, 2.2, 2.22, 22, 220
With these orders, the numbers from all groups are successfully arranged from least to greatest.