Chapter 1 (NCERT) · Class 6 CBSE · MCQ Test
Knowing Our Numbers MCQ Test — Class 6 CBSE
Practice 10 multiple-choice questions with instant answer reveal and explanations.
Knowing Our Numbers — MCQ Questions
1What is the place value of 6 in 63,412?
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Answer: 60,000
Hint: The digit 6 is in the ten-thousands place.
Solution:
Identify the position of 6 in 63,412.
6 is in the ten-thousands place. — Place value = 6 × 10,000 = 60,000
2Which of the following is the smallest 5-digit number?
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Answer: 10,000
Hint: The smallest 5-digit number starts with 1 followed by four zeros.
Solution:
A 5-digit number has digits in positions from ten-thousands to ones.
The smallest such number is: — 10,000
3Write the number 23,456 in words.
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Answer: Twenty-three thousand four hundred fifty-six
Hint: Break the number into thousands and hundreds parts.
Solution:
23,456 = 23 thousand + 4 hundred + 56
In words: Twenty-three thousand four hundred fifty-six.
4What is the face value of 7 in 47,832?
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Answer: 7
Hint: Face value of a digit is the digit itself, regardless of its position.
Solution:
Face value of any digit is the digit itself.
Face value of 7 in 47,832 = 7.
5Arrange in ascending order: 3,542; 3,245; 3,425; 3,524.
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Answer: 3,245 < 3,425 < 3,524 < 3,542
Hint: Compare digits from left to right, starting with the hundreds place (since thousands digit is the same).
Solution:
All numbers have 3 in the thousands place. Compare hundreds digits: 2, 4, 5, 5.
For the two with 5 in hundreds: compare tens: 2 < 4.
Order: 3,245 < 3,425 < 3,524 < 3,542.
6Round 7,463 to the nearest thousand.
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Answer: 7,000
Hint: Look at the hundreds digit. If it is less than 5, round down.
Solution:
The hundreds digit is 4 (less than 5).
Round down: — 7,463 ≈ 7,000
7What is the Roman numeral for 40?
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Answer: XL
Hint: In Roman numerals, a smaller value placed before a larger value means subtraction.
Solution:
40 = 50 - 10
In Roman numerals: — 40 = XL (X before L means 50 - 10)
8What is the largest 4-digit number?
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Answer: 9,999
Hint: Use the largest digit (9) in every position.
Solution:
The largest 4-digit number has 9 in every place.
Answer: — 9,999
9Estimate the sum 439 + 334 by rounding to the nearest hundred.
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Answer: 800
Hint: Round each number to the nearest hundred, then add.
Solution:
Round 439 to the nearest hundred: 400.
Round 334 to the nearest hundred: 300.
Estimated sum: — 400 + 300 = 700
10How many 6-digit numbers are there in all?
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Answer: 900,000
Hint: Count from the smallest 6-digit number to the largest 6-digit number.
Solution:
Smallest 6-digit number = 100,000; Largest = 999,999
Total count: — 999,999 - 100,000 + 1 = 900,000
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Tips for Knowing Our Numbers MCQs
- 1Read each question carefully and identify what is being asked before looking at the options.
- 2Try to solve the problem mentally or on paper first, then match your answer with the options.
- 3Use elimination — rule out clearly wrong options to improve your chances even when unsure.
- 4Check units, signs, and edge cases — these are common traps in Knowing Our Numbers MCQs.
- 5Review your mistakes after completing the test to build lasting understanding.
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