Worksheet: Estimating Length: Metric Units
In this worksheet, we will practice estimating the length of different real-life objects by choosing the most logical unit of length and value in metric units.
Q2:
Which measurement below is closest to the length of a car?
- A200 m
- B1 m
- C100 m
- D3 m
Q3:
Which of the following is a reasonable length for a tennis racket?
- A25 cm
- B60 cm
- C2 m
- D1 m
- E4 m
Q4:
How long is the shown object in reality? Choose the answer that gives the best estimation.
- A6 cm
- B60 cm
- C70 cm
- D100 cm
- E50 cm
Q5:
Estimate, in centimetres, the most likely length of a rubber.
- A4 cm
- B60 cm
- C40 cm
- D80 cm
- E20 cm
Q6:
Which of the following is a reasonable length for a spoon?
- A10 cm
- B50 cm
- C2 m
- D3 m
- E1 m
Q7:
Which of the following is a reasonable length for a toothbrush?
- A2 m
- B70 cm
- C12 cm
- D12 mm
- E5 dm
Q8:
Which of the following is the best approximation for the length of an adult’s leg?
- A80 cm
- B9 cm
- C7 mm
- D2 m
- E30 dm
Q9:
Which of the following would be the best estimate for the length of an adult’s shoe?
- A4 mm
- B28 cm
- C8 dm
- D7 m
- E90 cm
Q11:
Which of these is most likely to be the distance between two cities?
- A44 km
- B2,000 cm
- C84 m
Q12:
Which of these is most likely to be the length of a car?
- A10 m
- B10 cm
- C3 m
- D3 cm
Q13:
Which measurement below is closest to the length of a pencil?
- A50 cm
- B1 cm
- C8 cm
- D90 cm
Q14:
Which of the following would be the best estimate for the length of an adult’s little finger?
- A6 cm
- B90 cm
- C34 cm
- D2 cm
- E1 cm
Q15:
Which of the following would be the best approximation for the length of the longest side of a maths book?
- A5 cm
- B2 cm
- C60 cm
- D70 cm
- E25 cm
Q17:
Charlotte wants to measure the length of a plant cell. She has a microscope and a stage micrometer. Would she be more accurate measuring the length to the nearest millimeter or micrometer?
- Ato the nearest millimeter
- Bto the nearest micrometer
Q18:
William estimates the height of a mountain to be 1,400 cm. Is this realistic?
- ANo
- BYes
Q19:
Which of the following is a reasonable length for a door key?
- A50 cm
- B1 m
- C5 m
- D6 cm
- E2 m
Q20:
Which of these is most likely to be the height of a classroom?
- A10 m
- B300 m
- C300 cm
- D10 cm
Q21:
Which of these is most likely to be the height of a teacher?
- A160 cm
- B10 m
- C160 m
- D40 cm
Q22:
Anthony wants to cut out a hole in a piece of wood through which he will be able to place a beam of wood whose face is a rectangle. To determine the size of the hole that he needs to cut, would it be better to measure the beam’s dimensions to the nearest centimeter or nearest millimeter?
- Ato the nearest millimeter
- Bto the nearest centimeter
Q23:
How long is the shown object in reality? Choose the answer that gives the best estimation.
- A20 cm
- B3 m
- C1 m
- D70 cm
- E2 m
Q24:
How long is the shown object in reality? Choose the answer that gives the best estimation.
- A120 cm
- B12 yd
- C12 m
- D2 km
- E120 ft
Q25:
Which of these is most likely to be the length of a classroom?
- A1 cm
- B7 cm
- C1 m
- D7 m