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5. Write the place value of 5 in the following numbers.

(a) 6,53,127 (b) 95,072 (c) 590,783 (d) 5,821,074
6. Group the numbers by putting commas as per the Indian Number System and write
their number names.

(a) 97638 (b) 121375 (c) 4068179 (d) 534912
(e) 76209 (f) 6398705 (g) 8905678 (h) 2351645
7. Group the numbers by putting commas as per the International Number System and
write their number names.

(a) 23427 (b) 998916 (c) 820756 (d) 9087501
(e) 50249 (f) 543486 (g) 4819675 (h) 645678
8. Write numerals for the following number names.

(a) Two million thirty-seven thousand five hundred twenty-six _____________
(b) Fifty-four lakh seventy-five thousand six hundred eighty-nine _____________
(c) Twenty-two crore eight lakh nine hundred sixteen _____________

(d) Seventy-eight lakh thirty-three thousand sixty-eight _____________
(e) Nine million twenty-eight _____________

9. Fill in the blanks.
(a) In the Indian Number System, the place which is just to the left of thousands place
is ________________.
(b) 10,000 can also be written as ________________ hundreds.
(c) Six million two hundred five thousand ninety-eight in numeral is written as
________________.

(d) The place value of 6 in 2,86,304 is ________________.
(e) 1,00,000 can also be written as ________________ thousands.

Standard Form and Expanded Form

Writing a number as the sum of the place values of its digits is called the expanded form
of that number.

To write the short form of an expanded number, write the face value of each digit in its
correct place.
Example 3: Write 63,872 and 4,90,518 in the expanded form.

Solution: Standard form Expanded form Expanded form in words
63,872 = 60,000 + 3,000 + 800 + = 6 ten thousands +
70 + 2 3 thousands + 8 hundreds
+ 7 tens + 2 ones
4,90,518 = 4,00,000 + 90,000 + 0 + = 4 lakhs + 9 ten thousands +
500 + 10 + 8 5 hundreds + 1 ten +
8 ones

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