Text Book Back Exercises Questions with Answers, Solution : 5th Maths : Term 1 Unit 2 : Numbers : Exercise 2.3 (Importance of commas or periods)

**Exercise 2.3**

** **

**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. 1,57,31,997: **

One crore fifty seven lakhs thirty one thousand nine hundred and
ninety seven

** b. 3,41,964: **

Three lakhs forty one
thousand nine hundred and sixty four

**c. 2,91,21,972:
**

Two crores ninety one lakhs twenty one thousand nine hundred and
seventy two.

**d. 3,47,810:
**

Three lakhs forty seven thousand eight hundred and ten.

** **

**2.
Write the place value of 5 in the following numbers.**

**a.
15731997**

**b.
341964 **

**c.
29121972 **

**d.
347810**

**Answer: **The value of 5 in 15731997 is 5 × 1000000 = 5000000

** **

**3.
Write the following in standard notation. **

a. 30000 + 3000 + 300 + 30 + 3 **= 33333**

b. 200000 + 7000 + 7 =** 207007**

c. 8000000 + 70000 + 3000 +30 + 5 =** 8073035**

d. 4000000 + 400 + 4 = **4000404**

** **

**4.
Write the following numbers in expanded from.**

a.
63,570 =**
60000+3000+500+70**

b.
36,01,478 = **3000000+600000+1000+400+70+8**

c.
1,45,70,004 = **10000000+4000000+500000+70000+4**

d.
28,48,387 = **2000000+800000+40000+8000+300+
80 + 7**

Tags : Numbers | Term 1 Chapter 2 | 5th Maths , 5th Maths : Term 1 Unit 2 : Numbers

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5th Maths : Term 1 Unit 2 : Numbers : Exercise 2.3 (Importance of commas or periods) | Numbers | Term 1 Chapter 2 | 5th Maths

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