Ans: (a) $266$ (b) $265.4$ (c) $270$
- $265.473 = 266 \text{ (round up to the nearest integer)}$
- $265.473 = 265.4 \text{ (round down to 1 d. p.)}$
- $265.473 = 270 \text{ (round off to 2 sig. fig.)}$