Approximation, rounding and estimation Quiz

1. Round $0.04752$ to $2$ significant figures.

• A. $0.048$
• B. $0.047$
• C. $0.05$
• D. $0.04$

2. Round $3.14159$ to $3$ decimal places.

• A. $3.141$
• B. $3.14$
• C. $3.142$
• D. $3.1416$

3. Which is the best estimate of $\frac{48.2\times5.1}{0.52}$?

• A. $50$
• B. $500$
• C. $5000$
• D. $250$

4. An exact value is $40$ and an approximation is $38$. What is the percentage error?

• A. $2\%$
• B. $5.3\%$
• C. $10\%$
• D. $5\%$

5. Round $7603$ to $2$ significant figures.

• A. $76$
• B. $7000$
• C. $7600$
• D. $8000$