Grade 4 - Progress in Mathematics

Write a related multiplication fact for each.

1. 27
   3  9 2. 35
   5  7 3. 56
   7  8 4. 24
   4  6


2. 18
   9  2 6. 63
   7  9 7. 36
   6  6 8. 14
   2  7
   9 485


3. 1
   9  10. 9
   3  6  11. 6
   4  8  12. 8
   4  0 

Write a related division fact for each.

13. 8  1  8 14. 6  3  18 15. 9  5  45 16. 8  4  32


14. 9  8  72 18. 5  6  30 19. 8  2  16 20. 6  9  54


15. 
    
    
    
    22. 
        
        
        
        23. 
            
            
            
            24. 
                
            
            
            
            
        
        
        
        
    
    
    
    

Write four related facts using the given numbers.

Think about fact families.

25. 9, 2, 18 26. 3, 9, 27 27. 6, 8, 48 28. 7, 6, 42
    29. 8, 7, 56 30. 9, 8, 72 31. 3, 7, 21


26. 4, 9, 36 33. 5, 7, 35 34. 9, 7, 63

7

 4

28

5

 5

25

6

 9

54

8

 3

24

9  2  18

2  9  18

18 
 2  9

18 
 9  2

36. Explain how knowing one fact from a fact family,
    or set of related facts, helps you know the other facts
    in that fact family.


37. A classroom has 9 bulletin boards. Fifty-four thumbtacks are
    divided equally among the boards. Does each board have more
    or fewer than 5 tacks?

Solve the problem. Check using a related fact.

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