CBSE Class 7 Mathematics Large Numbers Around Us MCQs Set 04

Question. The smallest 6-digit number is 1,00,000. This number is read as:
(a) Ten Thousand
(b) One Million
(c) One Lakh
(d) One Crore

Answer: C

Question. Which calculation represents the minimum number of clicks required on Creative Chitti's calculator (+1, +10, +100, etc.) to obtain the number 5072?
(a) (50 × 100) + (7 × 10) + (2 × 1)
(b) (3 × 1000) + (20 × 100) + (72 × 1)
(c) (5 × 1000) + (0 × 100) + (7 × 10) + (2 × 1)
(d) (4 × 1000) + (10 × 100) + (7 × 10) + (2 × 1)

Answer: C

Question. The Thoughtful Thousands calculator (+1000 button) must be pressed how many times to display 90,000?
(a) 9 times
(b) 90 times
(c) 900 times
(d) 9,000 times

Answer: B

Question. The Tedious Tens calculator (+10 button) must be pressed how many times to display 780?
(a) 78 times
(b) 780 times
(c) 7 times
(d) 7800 times

Answer: A

Question. How many times should the Handy Hundreds calculator (+100 button) be pressed to display 97,600?
(a) 97 times
(b) 976 times
(c) 900 times
(d) 9,760 times

Answer: B

Question. To display 1,53,000 on the Thoughtful Thousands calculator (+1000 button), how many times must it be pressed?
(a) 15 times
(b) 153 times
(c) 1530 times
(d) 1,53,000 times

Answer: B

Question. How many hundreds are needed to form One Lakh?
(a) 10
(b) 100
(c) 1,000
(d) 10,000

Answer: C

Question. If Roxie lives for 100 years, assuming 365 days per year, how many days long is her lifetime?
(a) 36,500 days
(b) 3,650 days
(c) 3,65,000 days
(d) 1,00,000 days

Answer: A

Question. If a person ate 2 varieties of rice every day for 100 years (36,500 days, ignoring leap years), approximately how many varieties would they taste?
(a) 73,000
(b) 36,500
(c) 1,00,000
(d) 50,000

Answer: A

Question. The height of Somu’s building, which has 10 floors and each floor is 4 times Somu’s height (1 metre), is approximately:
(a) 4 metres
(b) 10 metres
(c) 40 metres
(d) 180 metres

Answer: C

Question. How many times taller is the Statue of Unity (180 metres) compared to Somu’s building (40 metres)?
(a) Close to 2 times
(b) Close to 3 times
(c) Close to 4 times
(d) Close to 5 times

Answer: C

Question. How much taller is the Kunchikal waterfall (450 metres) than Somu's building (40 metres)?
(a) 410 metres
(b) 490 metres
(c) 370 metres
(d) 450 metres

Answer: A

Question. To be as high as the Kunchikal waterfall (450 metres), how many floors should Somu’s building (4 metres/floor) have?
(a) About 10 floors
(b) About 50 floors
(c) About 100 floors
(d) About 112 or 113 floors

Answer: D

Question. According to the 2011 Census, the population of Chintamani town was approximately 75,000. How much less than one lakh (1,00,000) is this population?
(a) 5,000
(b) 10,000
(c) 25,000
(d) 75,000

Answer: C

Question. The estimated population of Chintamani in 2024 is 1,06,000. By how much did the population increase from the 2011 approximation of 75,000?
(a) 6,000
(b) 25,000
(c) 31,000
(d) 36,000

Answer: C

Question. The concept of "rounding up" (approximated number is more than actual) is best applied when:
(a) Reporting the exact change in population.
(b) Ordering necessary supplies like sweets for 732 guests.
(c) Stating the cost of a discounted item.
(d) Recording measurement readings in a science experiment.

Answer: B

Question. The concept of "rounding down" (approximated number is less than actual) is best applied when:
(a) A train inquiry agent gives a rounded arrival time.
(b) A shopkeeper quotes the price of an item costing ₹470 as around ₹450.
(c) A principal orders badges for 732 students, ordering 800.
(d) Calculating the exact sum of money owed.

Answer: B

Question. What is the Nearest Ten Thousand for the number 3,87,69,957?
(a) 3,87,00,000
(b) 3,87,70,000
(c) 3,88,00,000
(d) 4,00,00,000

Answer: B

Question. What is the Nearest Lakh for the number 29,05,32,481?
(a) 29,05,00,000
(b) 29,06,00,000
(c) 29,00,00,000
(d) 30,00,00,000

Answer: A

Question. What is the Nearest Crore for the number 3,87,69,957?
(a) 3,00,00,000
(b) 4,00,00,000
(c) 3,87,00,000
(d) 3,90,00,000

Answer: B