Grade 4 - Progress in Mathematics

Update your skills. See pages 7–8 and 10–12.

Missing Numbers

5-3

Find the missing divisor.

1. 6
   12 n 2. 30 a
   5 3. 8
   32 b


2. 54 c
   6 5. 49 x
   7 6. 56 y
   7


3. 15 z
   3 8. 2
   14 s 9. 9 t
   1

The related multiplication fact

for 63  7 
nis 7n
63.

Jill will put 9 nuts in each bag.

Study these examples.

48 n
 8 6 n
 42

n
 6 n
 7

So, 48  6 
8. So, 6  7 
42.

Think

n 8 
 48

6  8 
 48

Think

n 9 
 36

4  9 
 36

Think

42  6 
n

42  6 
 7

Think

7 n
 63

7  9 
 63

Think

21  7 
n

21  7 
 3

9

n
 3  6 

9

So, 4 
 3  6 

Jill has 63 nuts. She wants to make 7

equal snack bags for her hiking club.

How many nuts will Jill put in each bag?

To find how many nuts, n,

divide: 63 7 
n

7 n
 21

n
 3

So, 7  3 
21.

7 n
 63

n
 9

So, 63  7 
9.

Remember: Division and multiplication

are inverse operations, so you can use

a related multiplication fact to solve for n.

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