Which word problem below could be represented by the number sentence 5...
The word problem given in ?B? represents the number sentence 5 x 3 = 15.
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Which word problem below could be represented by the number sentence 5...
Understanding the Number Sentence 5 x 3 = 15
To understand why option B is the correct representation of the number sentence 5 x 3 = 15, let's break it down.
Definition of the Number Sentence
- The expression 5 x 3 means that there are 5 groups, each containing 3 items.
- When we multiply, we are essentially adding the same number multiple times.
- So, 5 x 3 equals 15 because you have 5 groups of 3, which sums up to 15.
Analyzing the Options
- Option A: "Durga had 5 note-books. She bought 3 more note-books. How many note-books did she have?"
- This involves addition, not multiplication. The total would be 5 + 3 = 8.
- Option B: "Durga bought 5 packages of notebooks with 3 note-books in each package. How many note-books did she buy?"
- This is a perfect fit for multiplication. Here, you have 5 packages, each containing 3 note-books: 5 x 3 = 15.
- Option C: "Durga had 5 note-books. She gave away 3 of them. How many note-books did she have left?"
- This is also an addition problem leading to subtraction, not multiplication. The calculation would be 5 - 3 = 2.
- Option D: "Durga had 5 packages of note-books. She put the note-books in 3 stacks. How many note-books were in each stack?"
- This question asks for distribution, which does not fit the multiplication structure of 5 x 3.
Conclusion
- Therefore, option B correctly represents the multiplication scenario of 5 x 3 = 15, as it describes buying 5 groups (packages) of 3 note-books each, totaling 15 note-books.
Which word problem below could be represented by the number sentence 5...
B will became 5x3=15
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