12 August 2020

Knowing Our Numbers – Class 6

Knowing Our Numbers – Class 6

IMPORTANT QUESTIONS FOR CBSE CLASS 6 MATHEMATICS
Knowing Our Numbers – Chapter 1


Answer the following:-

1. Write the number name of 8,88,88,888.
2. Write the number in figures: Thirteen lakh three thousand thirty three.
3. Write the place value and face value of 6 in the number 54, 67,879.
4. Write the expanded form of the number: 89, 60,754.
5. Write the standard form of: 30, 00,000 + 6,000 + 800 + 30 + 1
6. Put commas correctly and write the number name in International System of Numeration: 9876435.
7. Write the number in figures according to International System of Numeration: Five million eight hundred three thousand one hundred forty.
8. Use the digits without repetition to form the greatest 7-digit number:
9,0,4,3,6,8,2.
9. Use the digits with repetition to form the smallest 7 digit number:
1,0,7,9 4, 3.
10. Round off to the nearest ten, hundred and thousand of 87654.
11. Write the Roman numeral for
a) 654
b) 42
12. Write the Hindu-Arabic numerals for
a) CXX
b) XCIV
13. Estimate: 568 + 785 (Round off to nearest hundred)
14. Make the greatest 4 digit number with condition 5 is always at tens place.
15. Make the smallest 4 digit number with condition 6 is always at hundreds place.


ANSWERS:


1. Eight crore eighty eight lakh eighty eight thousand eight hundred eighty eight.
2. 13, 03,033
3. Place value of 6 is 60,000 and face value is 6 itself.
4. 8 x 10, 00,000 + 9 x 1, 00,000 + 6 x 10,000 +7 x 100 + 5 x 10 + 4 x 1.
5. 30, 06,831
6. 9,876,435
Number name: Nine million eight hundred seventy six thousand four hundred thirty five.
7. 5,803,140
8. 9864320
9. 1003479
10. 87654
Nearest ten = 87650
Nearest hundred = 87700
Nearest thousand = 88000
11. a) 654 = DCLIV
b) 42 = XLII
12. a) CXX = 120
b) XCIV = 94
13. 568 rounds off to 600.
785 rounds off to 800.
Estimated sum = 600 + 800 = 1400.
14. 9857
15. 1602.

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