Solving money measurement and time problems · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Solving money and measurement problems

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

  1. A book costs £2.35 and a pen costs 80p. What is the total cost in pence?

    Answer: ______________

  2. To find the change from £5, which model helps most?

    • A bar model splitting £5 into hours and minutes
    • A bar model splitting £5 into cost and change
    • A number line from 0 to 5 grams
    • An array of apples

  3. Jake is measuring how much water is left in a bottle after he drinks some. Which way to show his problem fits best?

    • A number line with hops
    • A clock showing what time it is
    • A shape showing a hexagon

  4. On a line plot of pencil lengths, what does each X above a number represent?

    Length (cm). Each X is one observation. 4: 0 observations; 5: 2 observations; 6: 2 observations; 7: 1 observation; 8: 0 observations.Each X is one observation.45678Length (cm)
    • One pencil that has that length
    • The total number of pencils
    • The average length of all pencils

  5. Sam pays with a £5 note for shopping that costs £3.47. How much change in pence does Sam get?

    Answer: ______________

  6. Look at the line plot of pencil lengths: 5, 6, 5, 7, 6 cm. How many pencils are exactly 6 cm long?

    Length (cm). Each X is one observation. 4: 0 observations; 5: 2 observations; 6: 2 observations; 7: 1 observation; 8: 0 observations.Each X is one observation.45678Length (cm)

    Answer: ______________

  7. Lily buys milk for £1.20 and bread for 95p. Which equation gives the total in pence?

    • 120 - 95
    • 95 - 120
    • 120 x 95
    • 120 + 95

  8. To solve a money problem, Amy draws a number line from 0p to 500p and marks the prices. Is a number line a sensible model?

    Circle one:   True   False

  9. Ben buys a ball for $9 and a hat for $6. He pays with a $20 bill. He writes: 20 - 9 = 11, so his change is $11. What did Ben forget?

    • He forgot to add tax
    • He should have used a number line instead
    • He left out the hat's cost

  10. Three pencils cost 45p each. Mia pays with £2. How much change in pence does she get?

    Answer: ______________

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Answer key

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

Solving money and measurement problems W1-mt_iQYPw8bMfN-s1

  1. 315 · £2.35 is 235p, and 235 + 80 = 315p.
  2. A bar model splitting £5 into cost and change · Splitting the paid £5 into cost and change shows the unknown change directly.
  3. A number line with hops · A number line shows the amount going down step by step, which matches drinking water little by little.
  4. One pencil that has that length · Every X stands for one measurement, so five X's mean five pencils were measured.
  5. 153 · £5 is 500p, and 500 - 347 = 153p.
  6. 2 · Two X's sit above the 6, so two pencils measured 6 cm.
  7. 120 + 95 · £1.20 is 120p, and a total means adding: 120 + 95.
  8. True · Amy is sensible. Marking prices on a pence number line shows totals and gaps clearly.
  9. He left out the hat's cost · Ben must add both costs first: 9 + 6 = 15. Then 20 minus 15 = 5 dollars change, not 11.
  10. 65 · The pencils cost 3 x 45 = 135p, and 200 - 135 = 65p change.
Worksheet · LightMySky