Precision in mathematical language and notation · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Say it exactly right

Mathematics · Mathematical Thinking · ages 7-8
Name ______________________   Date ____________

  1. A rope is 45 cm long. 18 cm is cut off. How long is it now in centimetres?

    Answer: ______________

  2. A pencil measures 35. Which answer is written correctly?

    • 35
    • 35 cm
    • 35 grams
    • 35 ml

  3. Mia measures a table. Which answer is written correctly?

    • 90
    • 90 cm
    • cm 90

  4. Ben writes 7 > 3 in his book. He has written that 7 is greater than 3.

    Circle one:   True   False

  5. A coin purse holds two one-pound coins. How many pence is that?

    Answer: ______________

  6. How do you write 3 pounds and 20 pence using the correct symbol?

    • £3.20
    • £3,20
    • 3.20p

  7. Which pair shows equivalent fractions?

    • 1/2 and 1/3
    • 2/3 and 3/4
    • 1/4 and 1/2
    • 1/2 and 2/4

  8. Sofia writes £3.47 for three pounds and forty-seven pence. Is Sofia right?

    Circle one:   True   False

  9. Zara wrote her height as '120' on a form. Her teacher marked it wrong. Why?

    • She forgot to include the units
    • She used the wrong fraction
    • She used the wrong symbol

  10. A pizza is cut into 8 equal slices. Mia eats 3 slices. How many slices are left?

    Answer: ______________

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Answer key

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

Say it exactly right W1-mt_HY8Yycu_rz-s1

  1. 27 · 45 - 18 = 27 cm.
  2. 35 cm · A pencil length needs centimetres: 35 cm.
  3. 90 cm · The unit comes after the number: 90 cm tells us exactly what was measured.
  4. True · The open side of > faces the 7, so the statement reads 7 is greater than 3.
  5. 200 · Each pound is 100 pence, and two pounds make 200 pence.
  6. £3.20 · Money uses the £ sign before the number and a decimal point, like £3.20.
  7. 1/2 and 2/4 · 2/4 is 1/2 cut into smaller slices, so they name the same amount.
  8. True · Sofia is right. £3.47 is the correct pounds and pence notation.
  9. She forgot to include the units · Without a unit like cm, nobody knows if 120 means centimetres or something else.
  10. 5 · 8 slices minus 3 eaten leaves 5, so 5/8 of the pizza is left.
Worksheet · LightMySky