Bar Graphs and Pictographs — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. A pictograph shows Sandwiches = 8, Salads = 5, Soups = 3 symbols (key = 4). What is the total number of lunches?
A) 60
B) 64
C) 56
D) 72
Add the symbols across all rows: 8 plus 5 plus 3 = 16 symbols, then multiply by the key value of 4 to get a grand total of 64 lunches.
2. A bar graph shows Room A = 35, Room B = 50, Room C = 25, Room D = 40. Which two rooms together equal 75?
A) Room A and Room D
B) Room B and Room C
C) Room A and Room B
D) Room C and Room D
Try adding pairs of bars: Room A's 35 plus Room D's 40 equals exactly 75, while no other combination of two rooms hits that sum.
3. A pictograph uses a key of 6. One row has 5 full symbols and a half symbol. What is the total?
A) 30
B) 36
C) 33
D) 27
Five full symbols stand for 5 times 6 = 30, and a half symbol means half of 6 = 3, so 30 plus 3 gives 33.
4. A bar graph shows Fiction = 45, Nonfiction = 30, Comics = 15. How many more Fiction books than Comics?
A) 15
B) 20
C) 25
D) 30
Subtract Comics from Fiction to find the gap between the two bars: 45 minus 15 leaves 30 more Fiction books.
Part B: Fill in the Blank
Write the correct answer on each line.
1. A pictograph shows Markers = 7, Crayons = 4, Pencils = 9 symbols (key = 5). The total supplies are 100.
Add the symbol counts to get 7 plus 4 plus 9 = 20 symbols, then multiply by the key value of 5 to find a grand total of 100 supplies.
2. A bar graph shows Week 1 = 20, Week 2 = 35, Week 3 = 45. The increase from Week 1 to Week 3 is 25.
An increase is the difference between the later value and the earlier one, so subtract Week 1's 20 from Week 3's 45 to get 25.
3. To show 42 on a pictograph where each symbol equals 6, you draw 7 symbols.
To find how many symbols you need, divide the total by the key value: 42 divided by 6 equals 7 symbols.
4. A bar graph shows Park A = 55 and Park B = 30. Park A has 25 more visitors than Park B.
Subtract Park B's bar from Park A's bar to find the gap: 55 minus 30 equals 25 more visitors at Park A.
5. A pictograph shows 6 full symbols and one half symbol with a key of 8. The total is 52.
Six full symbols stand for 6 times 8 = 48, and a half symbol means half of 8 = 4, so 48 plus 4 gives 52.