BECE Mathematics 2025 Paper

Concept:Keep the first three significant digits, round using the next digit, and fill the remaining places with zeros so the size of the number stays the same.Solution:First three significant figures: $5, 6, 7$. Next digit is $8 \ge 5$, so round $7$ up to $8$.$56\,782 \approx 56\,800$ (3 s.f.)Key point: $568$ has the right digits but is a different number; the zeros must stay as place holders.Answer:Option D ($56\,800$)