Let’s go step by step to solve this problem.
We are told:
- 3 books = 7 inches
- 5 books = 8 inches
- 2 books = 11 inches
- 6 books = 10 inches
- 2 books = 9 inches
(Note: The way it's written — “3 = 7in.” — means 3 books measured 7 inches each? Or total? But in context of line plots and measuring books, it usually means: there are 3 books that are 7 inches long, 5 books that are 8 inches long, etc. That makes sense for a line plot — we’re plotting how many books have each length.)
So let’s interpret it as:
→ Number of books at each length:
- 7 inches: 3 books
- 8 inches: 5 books
- 9 inches: 2 books
- 10 inches: 6 books
- 11 inches: 2 books
Now answer the questions:
1. How many total books did they measure?
Add up all the books:
3 (at 7") + 5 (at 8") + 2 (at 9") + 6 (at 10") + 2 (at 11")
= 3 + 5 = 8
8 + 2 = 10
10 + 6 = 16
16 + 2 =
18
✔ Total books = 18
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2. What was the length of the longest books?
Look at the lengths: 7, 8, 9, 10, 11 inches.
The largest number is
11 inches.
✔ Longest book = 11 inches
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3. How many books were less than 9 inches?
“Less than 9” means 7 inches and 8 inches only.
Books at 7": 3
Books at 8": 5
Total = 3 + 5 =
8
✔ Books less than 9 inches = 8
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4. How many books were 10 inches or greater?
“10 inches or greater” means 10 inches and 11 inches.
Books at 10": 6
Books at 11": 2
Total = 6 + 2 =
8
✔ Books 10 inches or greater = 8
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Final Answer:
1. 18
2. 11
3. 8
4. 8
Parent Tip: Review the logic above to help your child master the concept of line plot worksheet 2nd grade.
