Scaled picture graphs and bar graphs · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Graphs with a key: when one square means more

Mathematics · Data & Statistics · ages 8-9
Name ______________________   Date ____________

  1. To find the real number a group of symbols stands for on a scaled pictogram, what do you do?

    • Count the symbols only
    • Multiply the symbols by the key number
    • Add 1 to the symbols

  2. On a bar graph, the key says 'each square = 5 books'. How many books does 1 square show?

    • 1 book
    • 5 books
    • 10 books

  3. If a pictogram key is the same for every row, more symbols in a row always means more votes.

    Circle one:   True   False

  4. Each ball picture on a pictogram = 2 votes. Football has 5 balls, Tennis has 2 balls. How many more children chose football than tennis?

    >

    Answer: ______________

  5. A key says each square = 5 pets. The Rabbits bar is 4 squares tall. How many pets are shown for Rabbits?

    Answer: ______________

  6. A class voted for favourite fruit: Apple 12, Banana 9, Grape 15, Orange 6. What is the total number of votes for the top two choices?

    Apple12Banana9Grape15Orange6

    Answer: ______________

  7. A pictogram key says 1 star = 3 votes. Cats has 5 stars, Dogs has 3 stars, and Fish has 2 stars. What is the total number of votes for the top two animals?

    Answer: ______________

  8. Alex read a bar graph where each square = 10 books. He counted 3 squares in a row and said it shows 13 books. What should Alex have done instead?

    • Multiply: 3 x 10 = 30 books
    • Divide: 3 divided by 10 = 0.3 books
    • Nothing, 13 books is correct
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Answer key

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

Graphs with a key: when one square means more W1-mt_r8XnXwRA6g-s1

  1. Multiply the symbols by the key number · Each symbol is worth more than one, so you multiply the number of symbols by the key.
  2. 5 books · The key tells you what one square is worth. Here, one square stands for 5 books.
  3. True · When every row uses the same key, more symbols always stands for a bigger amount.
  4. 6 · Football: 5 x 2 = 10 votes. Tennis: 2 x 2 = 4 votes. 10 - 4 = 6 more.
  5. 20 · Multiply 4 squares by 5 pets each: 4 x 5 = 20.
  6. 27 · The top two are Grape (15) and Apple (12). 15 + 12 = 27.
  7. 24 · Cats: 5 x 3 = 15. Dogs: 3 x 3 = 9. Fish: 2 x 3 = 6. Top two are Cats and Dogs: 15 + 9 = 24.
  8. Multiply: 3 x 10 = 30 books · Squares on a scaled graph are multiplied by the key, not added. 3 squares x 10 books each = 30 books.
Worksheet · LightMySky