CLASS 5 MATHEMATICS - REVISION

CLASS 5

REVISION

TOPICS:

   Number Names
   Predecessor
   Successor
   Rounding off to 10, 100, 1000, 1000
   Addition 
   Subtraction
   Multiplication
   Division
   Prime Numbers 
   Composite Numbers
   Hindu-Arabic, Roman Numerals  
   Factor Tree   
   HCF    
   LCM
   Divisibility Tests
   Factors 
   Multiples
   Missing digits in 
             Addition and Subtraction                                                   


 1. Write the names according to Indian System of Numeration:

(i) 45789

(ii) 6879007


2. Write the names according to International System of Numeration:

(i) 46789203

(ii) 956324578


3. Form four different 5-digit numbers using the digits 6, 2, 7, 4, 3 each only once.


4. Write the predecessor of:

(i) 3480

(ii) 156000


5. Write the successor of:

(i) 78399

(ii) 321009

6. Round off to nearest 10:

(i) 84

(ii) 4565

7. Round off to nearest 100:

(i) 5324

(ii) 11879

8. Round off to nearest 1000:

(i) 18252

(ii) 24500

9. Round off to nearest 10000:

(i) 356223

(ii) 423887

10. Write the Roman Numerals:

(i) 56

(ii) 93

11.  Write the Hindu-Arabic Numerals:

(i) XXVIII

(ii) LXIV

12. Add 756389 and 650098.

13. Subtract 465578 from 728349.

14. Multiply 

(i) 453 with 167

(ii) 8271 with 780

15. Divide 

(i) 76896 by 12

(ii) 48006 by 18

16.  Find the missing digits a and b in the following:

(i)   8 7 3 5 9

  +  2 a 2 b 7
     -------------
    11 0 6 1 6
    --------------

(ii)   7 3 2 5 8

    -  3 1 a b 0
       ------------
       4 1 2 8 8
       ------------

17. Write the first 6 multiples of 14.

18. Write all the factor of 84.

19.  Use divisibility tests to find which of the following numbers are divisible by 2; by 3; by 4; by 5; by 6

(i) 6360

(ii) 2511

(iii) 2046

20. Draw the factor tree for (i) 54  (ii) 75

21. Find the common factors of 18, 24, 30 using prime factorisation method.

22. Find HCF and LCM of 24, 32, 48 using division method.

23. Find HCF of 84, 144 using long division method.

24. Write all the prime numbers between 0 and 30.

25. Write all the composite numbers between 31 and 70.



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