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1. What is the next  number?

   a. 20,200  ; 30,300;  40, 400 ; ______, ______, ________

   b. 50,000; 1,00,000; 1,50, 000 ; ________, _________, ________

   c. 4,46,270 ; 4,46,275 ;  4,46,280; ________, ________, ________


Answer

   a. 20,200  ; 30,300;  40, 400 ; 50, 500; 60,600; 70,700

   b. 50,000; 1,00,000; 1,50, 000 ; 2,00,000; 2,50,000; 3,00,000

   c. 4,46,270 ; 4,46,275 ;  4,46,280;  4,46,285; 4,46,290; 4,46,295

2.   Think and write.

  a. Which is greater among 49099, 49909 ?

  b. Which is smaller among  38834, 38384?

  c. The predecessor and successor of  567265.

Answer

   a. 49909

   b. 38384

   c. (1)Predecessor  of 567265  = 567264

       (2)Successor of  567265  = 567266

3. Write the following numbers in words.

   (a) 63741

   (b) 82051

   (c) 2, 05,041

Answer

  (a) Sixty three thousand seven hundred and forty one.

   (b) Eighty two thousand and fifty one. 

   (c) Two lakh five thousand and forty one.

4. Write the following numbers in figures. 

   (a) Three lakh three thousand and three.

  (b) Nine lakhs ninety nine thousand and ninety nine.

   (c) Six lakhs sixty six thousand seven hundred and sixty six 

 Answer

  (a) 3,03,003

  (b) 9,99,099

   (c) 6, 66, 766

5. Write the expanded form of the following numbers.

  (a) 43,872

  (b) 65,728

  (c) 93,4125

  (a) 40000+3000+800+70+2

  (b) 60000+5000+700+20+8

  (c) 900000+ 30000+4000+100+20+5

6. Write the following expanded form in short form.

 (a) 50000+2000+300+10+5

 (b) 300000+4000+600+30+7

 (c) 600000+90000+200+40+3

Answer

   (a) 52315

   (b) 304637

   (c) 690243

7. Write the following numbers in ascending and descending order.

 (a) 76931,   93716,    37619,   69317, 19736

 (b) 173584, 854173, 537814, 438571, 375481

Answer

    Ascending order

   (a)  19736,  37619, 69317, 76931, 93716

   (b) 173584, 375481, 438571, 537814, 854173

    Descending order

   (a)  93716, 76931, 69317, 37619, 19736

   (b) 854173, 537814, 438571, 375481, 173584

8. Write the place value of the underlined digits in the following numbers.

 (a) 345792

  (b) 90734

  (c) 85590

 (a) 3 is in lakh's place. So place value of 3 = 3 x 100000 = 300000

 (b) 9 is in ten thousand's place. So  place value of 9 = 9 x 10000 =  90000

  (c) 5 is in thousand place. So place value of 5 = 5 x 1000= 5000

9. Put the correct symbol (> , <)

a) 84321,87123

b)557621,554621

 (a) 84321   <  87123

 (b) 557621  >    554621

10. Write three numbers with  the following digits.

  (a)  9, 6, 7, 2, 1 write '5' digit numbers.

  (b) 3, 0, 4, 8, 5, 1 write '6' digits numbers.

Answer

 (a)   (i) 79612

        (ii) 97126

        (iii) 69712

 (b)   (i) 804351

         (ii) 580341

         (iii) 435018

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