Students can download 5th Maths Term 1 Chapter 2 Numbers Ex 2.3 Questions and Answers, Notes, Samacheer Kalvi 5th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

## Tamilnadu Samacheer Kalvi 5th Maths Solutions Term 1 Chapter 2 Numbers Ex 2.3

Question 1.
Read the following numbers by placing the commas at appropriate periods and write their number names.
a. 15731997
b. 341964
c. 29121972
d. 347810
a. 15731997
15731997 = 1,57,31,997
Number Name: One crore fifty seven lakhs thirty one thousands nine hundred and ninety seven.

b. 341964
341964 = 3,41,964
Number Name: Three lakhs forty one thousands nine hundred and sixty four.

c. 21921972
21921972 = 2,19,21,972
Number Name; Two crores nineteen lakhs twenty one thousands nine hundred and seventy two.

d. 347810
347810 = 3,47,810
Number Name: Three lakhs forty seven thousands eight hundred and ten. Question 2.
Write the place value of 5 in the following numbers.
a. 287500
b. 586012
c. 5869732
d. 5467859
a. 287500
The place value of 5 is 5 × 100 = 500

b. 586012
The place value of 5 is 5 × 1,00,000 = 5,00,000

c. 5869732
The place value of 5 is 5 × 10,00,000 = 50,00,000

d. 5467859
The place value of first 5 is 5 × 10 = 50
The place value of Second 5 is 5 × 10,00,000 = 50 00,000

Question 3.
Write the following in standard notation.
a. 30000 + 3000 + 300 + 30 + 3
b. 200000 + 7000 + 7
c. 8000000 + 70000 + 3000 + 30 + 5
d. 4000000 + 400 + 4
a. 30000 + 3000 + 300 + 30 + 3
= 33333 = 33,333

b. 200000 + 7000 + 7
= 207007 = 2,07,007

c. 8000000 + 70000 + 3000 + 30 + 5
= 8073035 = 80,73,035

d. 4000000 + 400 + 4
= 4000404 = 40,00,404 Question 4.
Write the following numbers in expanded form.
a. 63,570
b. 36,01,478
c. 1,45,70,004
d. 28,48,387