1. Fill in the blanks.

a) 1,435 + 0 = 1,435
b)  58,699 + 1= 58,700
c) 1 + 78, 645=  78,645+ 1
d) 56,836 - 1 = 56,835
e). 9,743 - 0 = 9,743

2. Add  3251+ 4036.
    

3. Add the following.
    

4. Subtract the following
     

5. Subtract the following
     

6. Add  3,24,012  and  73, 952.
     

7. Fill in the correct digits  in the boxes.
     

8. Add 6,42,791 and 3,37,286
   

9. Fill in the correct digits in the boxes.
     

10. Fill in the missing numbers.
      a. 2,87,643 + 6,93,210 = 2,87,643 + 6,93,210
      b. 6, 87,140 + 0 = 6,87,140.
      c.  7,79,346 + 0 = 7,79,346
      d. (36,789 + 44,952) + 71,164 = 36,789 + 44, 952  + 71,164

11. Fill in the missing digits to complete the following addition.
       

12. Fill in the missing digits to complete the  following addition.
       

13. Subtract 2,14,054 from 6,85,398.
       

14. Subtract 3,21,307  from 6,73,948
        

15. Fill in the correct digits in the boxes.
       

       In the ones column, 6 - 2 = 4
       In the tens  column =  8 - 4 = 4
       In the thousands column, 7 - 5 = 2

16. Subtract  1,82,645  from  3,24,378
        

17. Subtract 38,747  from 100,000.
       

18. Fill in the correct digits  in the boxes.
       

19.  Find 5,63,218 + 1,88,395 - 3,  56, 719
          

20.  Find 3,00,000 + 30,000 - 1,00,000.
        

21. The area of  New  Zealand  is  2, 70, 534 square  km.  The area of  Venezuela is  6,41, 526 square  km more than  the area of  New Zealand. What  is the area of  Venezuela?
       Area of  New Zealand = 2,70, 534 sq.km
       Area to be  added =  6,41, 516  sq.km
       Area of Venezuela = 2,70, 534 + 6,41, 516  = 9, 12,050 sq.km
       Total Area of Venezuela = 9, 12,050 sq.km.
       

22. The population of Bhutan 6,00,000 and the population of Maldives  3,62, 000 less than that of Bhutan. What is the population of Maldives?
       Population of Bhutan = 6,00,000
       Number to  be subtracted = 3,62, 000
       Population of Maldives = 6,00,000 - 3,62, 000 =  2, 38, 000
       The population of Maldives is 2,38,000.

23. A number is 86, 376 more than the greatest 5 digit number. What is the number?
       Greatest  5 digit number = 99, 999
       A number =  86, 376
       The other number = 99, 999 +  86, 376 = 1, 86, 375

24. The sum of two numbers is 7,51, 356. If one of the number is 2,00, 008. Find the other number?
       Sum of two numbers =  7,51,356
       one number = 2, 00,008
        The other number = 7, 51, 356 - 2, 00, 008 = 5,51,348

25. 1,41,732 students  appeared  for an examination, out  of which 80,497 were boys. How many girls appeared for the examination?
      Total students appeared in the examination = 1,41,732
      Boys appeared in the examination =  80,497.
      Girls appeared in the examination = 1,41,732 - 80,497 = 61,235