## EXERCISE 1 B

QUESTION 1

**Read and write down in words , the following numbers in the Indian system of numeration.**

**(i) 6,80,453**

Sol :

**(ii) 12,36,748**

Sol :

**(iii) 8,30,09,007**

Sol :

**(iv) 10,00,30,004**

Sol :

**(v) 33,04,05,078**

Sol :

QUESTION 2

**Write the following in figures .**

**(i) Five lakh three thousand seven hundred eighty-five**

Sol :

**(ii) Eighty Iakh fifteen thousand two hundred five**

Sol :

**(iii) Ninety crore seven lakh nine thousand four hundred three**

Sol :

**(iv) One crore one lakh one thousand one**

Sol :

**(v) Two hundred seventy crore eighty-eight lakh sixty-five thousand two hundred ninety-five**

Sol :

QUESTION 3

**State the place value of 8 in each of the following**

**(i) 80,657**

Sol :

**(ii) 8,10,902**

Sol :

**(iii) 86,74,597**

Sol :

**(iv) 8,16,77,000**

Sol :

QUESTION 4

**Express each of the following numbers in expanded form.**

**(i) 83,596**

Sol :

**(ii) 75,16,930**

Sol :

**(iii) 42,65,93,240**

Sol :

QUESTION 5

**Write the compact numeral.**

**(i)5×100000 + 7×1000 + 8×100 + 1×10 + 6×1**

Sol :

**(ii) 7×1000000 + 9×100000 + 0×10000 + 6×100 + 2×10 + 8×1**

Sol :

**(iii) 20,00,00,000 + 4,00,00,000 + 70,000 + 600 + 5**

Sol :

QUESTION 6

**Compare , Use < or > for each **

**(i) 19,25,875 __ 19,52,875**

Sol :

**(ii) 60,12,40,627 __ 61,02,04,726**

Sol :

QUESTION 7

**Arrange the numbers in each of the following from the largest to the smallest.**

**(i) 6,90,672; 6,09,762; 8,95,072; 9,07,652**

**Sol :**

**(ii) 8,93,45,015; 8,45,39,150; 9,01,83,726; 9,00,25,900**

**Sol :**

QUESTION 8

**Arrange the numbers in each of the following from the smallest to the largest**

**(i) 4,60,570; 7,90,856; 5,72,803 ; 6,81,906**

Sol :

**(ii) 64,15,23,453; 2,09,62,000; 11,00,83,000; 9,53,654**

Sol :

QUESTION 9

**(i) Write the greatest 8-digit number having three different digits **

Sol :

**(ii) Write the smallest 6-digit number having three different digits**

Sol :

QUESTION 10

**How many numbers in all do we have with (i) 7 digits (ii) 9 digits **

Sol :