ISEE Word Problems Question 128: Answer and Explanation
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Question: 128
10. Using exponents, write 329 in expanded form.
- A. (32×10) + (2 × 10) + 9
- B. (3 ×102) + (2 × 10) + 9
- C. (3 × 102) + (2 ×102) + 9
- D. (3 × 103) + (2 × 10) + 9
Correct Answer: B
Explanation:
The correct answer is (B). (3 × 102) + (2 × 10) + 9. Choice (A) = 929; choice (C) = 300 + 200 + 9 = 509; and choice (D) = 3029.