Question Type 1: Rounding numbers to a specific value in decimals Exercises

Round the number $5.678$ to two decimal places.

Round the number $0.03456$ to three decimal places.

Round the number $12.34567$ to four decimal places.

Calculate $3.45 \times 11.3$ and round the answer to two decimal places.

Add $7.899$ and $3.456$, then round your answer to three decimal places.

Divide $7.2$ by $3$ and round the result to three decimal places.

Calculate $0.1234 \times 0.5678$ and round the answer to four decimal places.

Find the area of a rectangle with sides $5.678\text{ m}$ and $2.345\text{ m}$, then round your answer to three decimal places.

A chemical solution has concentration $0.076543\,\text{g/mL}$. Find the mass of solute in $125.8\,\text{mL}$ and round your answer to three decimal places.

A book has mass $12.345\,\text{kg}$ and is dropped into water of volume $0.004567\,\text{m}^3$. Calculate its density $\rho = \frac{m}{V}$ and round your answer to four decimal places.

A region has population $1{,}234{,}567$ and area $234.56\,\text{km}^2$. Compute the population density and round to one decimal place.