Bar Graphs and Pictographs — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A pictograph shows Ducks = 10 symbols, Geese = 6 symbols (key = 3). Ducks total 30.
The Ducks row has 10 symbols, and each symbol stands for 3 ducks, so multiply 10 times 3 to get a total of 30 ducks.
2. Using the same data, Ducks outnumber Geese by 12.
Ducks total 10 times 3 = 30 and Geese total 6 times 3 = 18, so subtracting 30 minus 18 shows Ducks outnumber Geese by 12.
3. A bar graph shows Sci-Fi = 20, Comedy = 35, Drama = 25. The most popular genre is Comedy.
The most popular genre is the one with the highest number, and 35 beats both 20 and 25, making Comedy the leading bar.
4. All three genres together attracted 80 viewers.
Add every bar to combine the audiences: 20 plus 35 plus 25 equals 80 viewers in total.
5. A pictograph shows Oranges = 8 symbols and Lemons = 5 symbols (key = 5). Oranges minus Lemons equals 15.
Oranges total 8 times 5 = 40 and Lemons total 5 times 5 = 25, so subtract 40 minus 25 to get a difference of 15.
6. On a bar graph, Hockey = 15, Soccer = 40, Baseball = 25. Soccer exceeds Hockey by 25.
Subtract Hockey's bar from Soccer's bar to find how much higher Soccer reaches: 40 minus 15 leaves a 25-point lead.
7. A pictograph with a key of 6 shows 3 full symbols and one half symbol. That equals 21.
Three full symbols stand for 3 times 6 = 18, and a half symbol means half of 6 = 3, so 18 plus 3 gives 21.
8. A bar graph shows Week 1 = 30, Week 2 = 60. Week 2 is 2 times as many as Week 1.
Divide the bigger value by the smaller one: 60 divided by 30 equals 2, so Week 2 is exactly twice as tall as Week 1.
9. If Frogs = 4 symbols and Turtles = 6 symbols (key = 10), the combined total is 100.
Add the symbols first to get 4 plus 6 = 10 symbols, then multiply by the key value of 10 to get a combined total of 100.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
4 symbols, key = 10
→ 40
30
7 symbols, key = 3
→ 21
20
6 symbols, key = 5
→ 30
21
10 symbols, key = 2
→ 20
40
Correct matches: 4 symbols, key = 10 → 40; 7 symbols, key = 3 → 21; 6 symbols, key = 5 → 30; 10 symbols, key = 2 → 20.