1. What is the place value of 5 in 5,432?
- A5
- B500
- C5,000
- D50
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Answer: C) 5,000
The digit 5 is in the thousands place, so its place value is 5,000.
Class 6 Knowing Our Numbers — practice questions with answers
Numbers · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. Which is the smallest 4-digit number that can be formed using the digits 7, 0, 5, 3 (each used once)? (A number cannot begin with 0.)
- A6114
- B2752
- C3362
- D3057
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Answer: D) 3057
Arrange in ascending order: 0, 3, 5, 7. Since the number cannot start with 0, place 3 first, then 0, 5, 7, giving 3057.
3. Which of these numbers is the largest?
- A9,999
- B10,001
- C10,010
- D9,990
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Answer: C) 10,010
The two 5-digit numbers 10,001 and 10,010 are larger than the 4-digit ones. Between them, 10,010 > 10,001, so 10,010 is the largest.
4. Using the digits 4, 2, 8, 1 once each, what is the difference between the greatest and the smallest 4-digit numbers formed?
- A14346
- B6458
- C7888
- D7173
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Answer: D) 7173
Greatest number = 8421 (digits in descending order), smallest number = 1248 (digits in ascending order). Difference = 8421 - 1248 = 7173.
5. Which statement is correct?
- AIn the Indian system, after thousands we use lakhs and crores
- BIn the International system, 1 lakh is called 1 million
- CThe face value of a digit changes with its position
- D100 thousands make 1 crore
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Answer: A) In the Indian system, after thousands we use lakhs and crores
Correct: the Indian system uses ones, tens, hundreds, thousands, lakhs, crores. 1 lakh = 100 thousand (not 1 million); face value never changes; 100 thousands = 1 lakh (not 1 crore).
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