Pie charts and line graphs · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Reading pie charts and line graphs

Mathematics · Data & Statistics · ages 10-11
Name ______________________   Date ____________

  1. A line graph shows 12 degrees at 9am and 16 degrees at 12 noon. By how many degrees did it rise?

    Answer: ______________

  2. A line graph shows temperature rising from 8 degrees at 6am to 18 degrees at 2pm. What is the trend?

    • Temperature falls all morning
    • Temperature stays exactly the same
    • Temperature rises through the morning
    • Temperature cannot be read from the graph

  3. A line graph shows temperature rising from 10°C at 6am to 22°C at 3pm. What does the rising line tell you?

    • The temperature is going up
    • The temperature is going down
    • The temperature is staying the same

  4. On a line graph, a flat (horizontal) section means the value did not change during that time.

    Circle one:   True   False

  5. A temperature line graph reads 10°C at 6am, 14°C at 9am, 20°C at 12pm, 22°C at 3pm, and 18°C at 6pm. During which two hours did the temperature drop?

    • 6am to 9am
    • 12pm to 3pm
    • 3pm to 6pm

  6. A 90 degree pie sector with 200 pupils in total represents 50 pupils. Is that correct?

    Circle one:   True   False

  7. A pie chart is split into 4 equal sectors. What is the angle of each sector in degrees?

    Answer: ______________

  8. 24 children picked their favourite fruit: 12 chose apples, 6 chose bananas, 6 chose grapes. What angle should the apple sector be?

    • 90°
    • 180°
    • 270°

  9. Zara says the Fun sector in a budget pie chart (25% of $40) should be drawn as a 25° angle. What mistake did she make?

    • She used the percent number as the angle instead of finding 25% of 360°
    • She forgot pie charts use degrees
    • She used too large a total

  10. A pie chart of 240 pupils has a 60 degree sector for cycling. How many pupils cycle?

    • 40
    • 60
    • 24
    • 36
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Answer key

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

Reading pie charts and line graphs W1-mt_bESTSBB0wK-s1

  1. 4 · 16 - 12 = 4 degrees.
  2. Temperature rises through the morning · The line climbs from 8 to 18 degrees across the morning.
  3. The temperature is going up · When a line graph slopes upward, the value it shows is increasing.
  4. True · A flat line means the value stayed level, neither rising nor falling.
  5. 3pm to 6pm · The temperature fell from 22°C to 18°C between 3pm and 6pm, so the line slopes down there.
  6. True · It is correct: 90/360 x 200 = 50.
  7. 90 · 360 / 4 = 90 degrees.
  8. 180° · Apples are 12 out of 24, which is half. Half of 360° is 180°.
  9. She used the percent number as the angle instead of finding 25% of 360° · The angle isn't the percent itself. You need 25% of 360°, which is 90°, not 25°.
  10. 40 · 60/360 x 240 = 40 pupils.
Worksheet · LightMySky