Numbers | Term 1 Chapter 2 | 5th Maths
5th Maths : Term 1 Unit 2 : Numbers
Exercise 2.3
1. Read the following numbers by placing the commas at appropriate periods and write their number names.
(i) 15731997 (ii) 341964 (iii) 29121972 (iv) 347810
(i) 1,57,31,997:
One crore fifty seven lakhs thirty one thousand nine hundred and ninety seven
(ii) 3,41,964:
Three lakhs forty one thousand nine hundred and sixty four
(iii) 2,91,21,972:
Two crores ninety one lakhs twenty one thousand nine hundred and seventy two.
(iv) 3,47,810:
Three lakhs forty seven thousand eight hundred and ten.
2. Write the place value of 5 in the following numbers.
(i) 15731997
(ii) 341964
(iii) 29121972
(iv) 347810
Answer: The value of 5 in 15731997 is \(5 \times 1000000 = 5000000\)
3. Write the following in standard notation.
(i) \(30000 + 3000 + 300 + 30 + 3 = \) 33333
(ii) \(200000 + 7000 + 7 = \) 207007
(iii) \(8000000 + 70000 + 3000 + 30 + 5 = \) 8073035
(iv) \(4000000 + 400 + 4 = \) 4000404
4. Write the following numbers in expanded form.