Measuring length (age 7+) · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.
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Picking the right tool to measure length

Mathematics · Measurement · ages 7-8
Name ______________________   Date ____________

  1. A ruler has marks at 0, 1, 2, 3 and 4 cm. How many 1 cm spaces lie between 0 and 4?

    Answer: ______________

  2. A strip starts at zero and ends at 18 on a scale marked cm. Which record keeps the measured unit?

    • 18 cm
    • 18 inches
    • 18 feet
    • 18 metres

  3. A pencil is 15 cm long. Which is the shortest tool that covers it in one placement?

    • A 200 cm measuring tape
    • A 30 cm ruler
    • A 100 cm metre stick

  4. A tape reaching 60 inches can cover a longer straight length in one placement than a ruler reaching 12 inches.

    Circle one:   True   False

  5. Exactly four full placements of a 1-metre stick cover a wall, with no gaps or overlaps. How many metres long is the wall?

    Answer: ______________

  6. A book's width runs from 0 to 6 on an inch ruler. How many inches wide is it?

    Answer: ______________

  7. A ruler has a cm scale and an inch scale. You need centimetres. Which scale should you read?

    • The scale marked inches
    • Whichever scale has more marks
    • The scale marked cm
    • Whichever scale has fewer marks

  8. Leo lets a tape droop between the ends of a straight shelf. The drooping tape follows the shelf's straight length accurately.

    Circle one:   True   False

  9. Mia starts a table measurement at 2 inches and reads 14 inches at the other end. She reports 14 inches. Which check gives the table's length?

    • Add the two readings: the length is 16 inches.
    • Subtract the start: the length is 12 inches.
    • Keep the final reading: the length is 14 inches.

  10. A strip is measured in three parts with no gaps or overlaps: 15 cm, 15 cm and 8 cm. What is its total length in centimetres?

    Answer: ______________

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Answer key

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

Picking the right tool to measure length W1-mt_e4x3l2JeLI-s1

  1. 4 · Five marks have four spaces between them: 0 to 1, 1 to 2, 2 to 3 and 3 to 4.
  2. 18 cm · The reading is 18 and the scale is marked cm. Record 18 cm.
  3. A 30 cm ruler · All three tools cover 15 cm. The 30 cm ruler is the shortest of them.
  4. True · Both reaches use inches. Since 60 is greater than 12, this tape covers a longer length in one placement.
  5. 4 · Each full placement is 1 metre. Four placements measure 4 metres.
  6. 6 · The book starts at zero and ends at 6 on the inch scale. Its width is 6 inches.
  7. The scale marked cm · cm means centimetres, so use the scale marked cm.
  8. False · The drooping tape follows a longer path. Hold it straight along the shelf before reading.
  9. Subtract the start: the length is 12 inches. · The first 2 inches on the scale lie before the table starts. Subtract them: 14 - 2 = 12 inches.
  10. 38 · Add all three parts: 15 + 15 + 8 = 38 cm.
Worksheet · LightMySky