# Worksheet: Estimating Length: Customary Units

In this worksheet, we will practice how to estimate the lengths of different real-life objects by choosing the most logical unit of length and value in customary units.

**Q2: **

Choose an appropriate unit for measuring the width of the Atlantic Ocean.

- Afeet
- Bcentimeters
- Cinches
- Dyards
- Emiles

**Q3: **

Which is a more reasonable estimate for the length of a bedroom: 1 rod or 4 rods?

**Q4: **

Matthew wants to know the approximate height of a mountain. Would it be more accurate to have an approximation given to the nearest mile, yard, or foot?

- A to the nearest mile
- B to the nearest foot
- C to the nearest yard

**Q5: **

Natalie, using a clinometer, worked out the height of an oak tree to be 63 miles. What did she do wrong?

- AShe used the wrong units.
- BShe missed multiplying by .
- CShe missed off a zero.
- DShe missed dividing by .
- EShe missed adding .

**Q6: **

Daniel wants to measure the height of a door frame as accurately as possible. Should he measure its height to the nearest quarter, eighth, or sixteenth of an inch?

- A to the nearest sixteenth of an inch
- B to the nearest eighth of an inch
- C to the nearest quarter of an inch

**Q7: **

Choose an appropriate unit for measuring the distance between two cities.

- Ainches
- Byards
- Cmiles
- Dcentimeters
- Efeet

**Q8: **

Daniel wants to estimate the length of a journey from the east coast to the west coast of the USA.

What would be a disadvantage to estimating this distance in feet?

- AThe number would be very large.
- BThe number would be smaller and easier to visualize.

What would be an advantage to estimating the distance in miles?

- AThe number would be very large and difficult to visualize.
- BThe number would be smaller and easier to visualize.

**Q9: **

William wants to estimate the height of an office building with 58 floors.

Which of the following is the best estimate for the height of a ceiling in an office?

- A 8 ft
- B 15 ft
- C 20 ft
- D 4 ft
- E 6 ft

Given there is a gap of about 2 ft between each floor in the building, estimate the total height of the building.

- A ft
- B 348 ft
- C 464 ft
- D 986 ft
- E 580 ft