Page 10 - Math Genius C5

E:\Working\Orange_Education\Math_Genius_5\Open_Files\CHAP_01
\ 08-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

1. The distance between the Earth and the Moon is 384400 km. Write the distance in
words.
______________________________________________________________________

2. Write the greatest and smallest 6-digit numbers.
Greatest 6-digit number: _____________________________

Smallest 6-digit number: _____________________________
3. Write the following numbers in words:

( a) 754894: ____________________________________________________________

( b) 500489: ____________________________________________________________

4. Write the following numbers in numerals:

( a) Eight lakh forty-seven thousand one: ________________________________

( b) Nine lakh ninety-nine thousand nine hundred ninety-nine:

________________________________
5. Find the face value and the place value of the coloured digit in the following numbers:

Numbers Face value Place value
(a) 424781

(b) 875014
6. Which number is greater: 540789 or 507489? ____________________________

Knowing Large numbers

7-Digit numbers

We know that 999999 is the greatest 6-digit number. If we add 1 to the greatest 6-digit
number, we will get the smallest 7-digit number.

tL L TTh Th H t O Be Aware
9 9 9 9 9 9 Greatest 6-digit number For a 7-digit number, we

+ 1 need a new place called ten
1 0 0 0 0 0 0 Smallest 7-digit number lakh.

1000000 is the smallest 7-digit number and it is read as ten lakh.

Similarly, 2000000 is read as twenty lakh, 3000000 is read as thirty lakh and 9000000 is
read as ninety lakh.

9999999 is the greatest 7-digit number and it is read as ninety-nine lakh ninety-nine

thousand nine hundred ninety-nine.

Mathematics-5
8 8 Mathematics-5