Page 28 - Math Genius C5

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\ 08-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

Chapter assessment

1. Tick () the correct option.

( a) Which digit has the smallest place value in thirty-three million seven hundred

sixty-nine thousand fourteen?
(i ) 3 (ii ) 0 (iii ) 9 (iv) 4

( b) In a car parking lot, CCCLX cars are parked. MDL more cars can be parked. The
capacity of the parking lot is ________.
(i ) MIXCX (ii ) MMCX (iii ) MCMX (iv) MCXC

( c) One of the digits of the number given below is unknown. Which among the
following cannot be the place value of the unknown digit? 5 6 7 ? 3 2 9

(i ) 0 (ii ) 7,000 (iii ) 1,000 (iv) 500

( d) If you have three number cards with the digits 1, 8 and 6, then the greatest
possible 8-digit number you can form where 1 is repeated thrice, 8 is repeated
four times and 6 is used only once will be
(i ) 11188886 (ii ) 86111888 (iii ) 88886111 (iv) 88881116

2. Write the predecessor of the greatest 7-digit even number formed using the digits
4,5,8,9,1,3.

3. In the number 6,708,813 which smallest digit has the same place value and face value?
4. How many thousands are there in 1 lakh?
5. How many thousands make 10 million?

6. Simar rounds off the smallest 5-digit number having different digits to the nearest 10,
nearest 100 and nearest 1000. In which case will she get the smallest number?
COMPETENCy BASEd QUESTION
7. The radius of the Earth is 6400 km and that of Mars is 3390000 m. Whose radius is
bigger and by how much?

8. Take the number 4,382,719.
( a) Interchange any two digits to make a number greater than 6,000,000.

( b) Interchange any two digits to make a number less than 2,000,000.

9. A city launched a tree plantation drive. In the first phase, 2,37,856 saplings were
planted. In the second phase, 1,89,745 saplings were planted. Estimate the number
of saplings planted in each phase by rounding off to the nearest ten thousand.
COMPETENCy BASEd QUESTION

10. Indian Railways reported that 1,234,567 passengers travelled in express trains last
month, while 2,345,678 passengers travelled in local trains. Which type of train carried
more passengers?

26 Mathematics-5