Measuring length and height (age 5+) · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.
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Measuring length with units

Mathematics · Measurement · ages 5-6
Name ______________________   Date ____________
  1. Which tool measures length in centimetres?

    • A jug with marks for water
    • A ruler with cm marks
    • A clock with numbers for time
  2. A centimetre scale has marks 0, 1, 2, 3 and 4. How many 1 cm spaces are there from 0 to 4? Count spaces, not marks.

    Answer: ______________

  3. Which cubes should you choose for one measuring row?

    • Cubes that mix large and small sizes
    • Cubes that are all the same size
    • Cubes that get larger along the row
    • Cubes that change size halfway along
  4. The picture shows all the same-size cubes used to measure a pencil. In a straight touching row, they fit from one end to the other. How long is the pencil?

    • 5 cubes
    • 4 cubes
    • 6 cubes
  5. A strip has these equal cube-wide spaces: cube, gap, cube, cube, gap, cube. Each gap fits one cube. After filling the gaps, how many cubes measure the whole strip?

    Answer: ______________

  6. Three same-size cubes touch in a straight row from one end of a toy road to the other. Four spare cubes sit beside the row. How many cubes long is the road?

    Answer: ______________

  7. A measurement note says '12 cm'. What does 'cm' tell you?

    • The units are small cubes
    • The units are paper clips
    • The units are centimetres
    • The units are whole rulers
  8. Ben measured his desk with cubes and counted 9. Which note records the number and the unit he used?

    • 9 cubes
    • 9 centimetres
    • 9 desk lengths
  9. Lily measures one table with 6 big blocks of the same size. She measures another with 6 small cubes of the same size. Each straight touching row fits end to end. Each big block covers more length than a small cube. Are the tables the same length?

    • Yes, because both measuring counts are six
    • No, the bigger units cover more length
    • Yes, because blocks and cubes always have the same length
  10. Amir and Bella measure the same table. Each straight touching cube row fits end to end. Amir uses big cubes and counts 5. Bella uses small cubes and counts 9. Why are their counts different?

    • The table grew between the two counts
    • Both children used cubes of the same size
    • Cubes cannot be used for measuring
    • They used cubes of different sizes
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Measuring length with units W1-mt_KaF0SQvaiu-s1

  1. A ruler with cm marks · A ruler with cm marks measures length in centimetres.
  2. 4 · The spaces are 0 to 1, 1 to 2, 2 to 3 and 3 to 4. There are 4 spaces.
  3. Cubes that are all the same size · Choose cubes of one size. Each cube should measure the same amount of length.
  4. 5 cubes · Count the five measuring cubes. They fit the pencil from end to end, so it is 5 cubes long.
  5. 6 · There are six equal spaces along the strip. Filling the gaps makes a complete row of 6 cubes.
  6. 3 · The three cubes in the measuring row cover the road's length. The four spare cubes are not part of the measurement.
  7. The units are centimetres · The letters cm stand for centimetres. The number 12 tells how many centimetres.
  8. 9 cubes · Ben counted 9 measuring cubes. His note should say 9 cubes.
  9. No, the bigger units cover more length · Each big block covers more length than a small cube. Six big blocks cover more length than six small cubes.
  10. They used cubes of different sizes · Big cubes cover more length each. The same table needs fewer big cubes than small cubes.
Worksheet · LightMySky