| A | B |
| How many significant figures are in 125.0 g | 4 |
| How many significant figures are in 0.002450 g | 4 |
| How many significant figures are in 35.00 ml | 4 |
| How many significant figures are in 23 people | infinite!! |
| How many significant figures are in 50.2 s | 3 |
| How many significant figures are in 201 cm | 3 |
| How many significant figures are in 0.125 µg | 3 |
| How many significant figures are in 0.02250 kg | 4 |
| How many significant figures are in 0.7002 µJ | 4 |
| How many significant figures are in 1.000320 cL | 7 |
| How many significant figures are in 2.250 x 10-2 mL | 4 |
| How many significant figures are in 1.250 x102 g | 4 |
| How many significant figures are in 2.450 x 10-3 g | 4 |
| How many significant figures are in 0.0003 g | 1 |
| How many significant figures are in 2.0001 L | 5 |
| How many significant figures are in 212 mL | 3 |
| How many significant figures are in 212 books | infinite!! |
| How many significant figures are in 250. L | 3 |
| How many significant figures are in 400 s | 1 |
| How many significant figures are in 301 M&M's | infinite!! |