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Lesson 1 - Identifying Factors



 1. 

Which array of these 10 counters shows the factors of 10?

                      mc001-1.jpg
a.

       mc001-2.jpg
c.

mc001-4.jpg
b.

   mc001-3.jpg
d.

     mc001-5.jpg
 

 2. 

Which arrary of these 16 counters shows the factors of 16?

           mc002-1.jpg
a.

     mc002-2.jpg
c.

     mc002-4.jpg
b.

     mc002-3.jpg
d.

    mc002-5.jpg
 

 3. 

Which factor rainbow shows factors of 36?
a.

mc003-1.jpg
c.

mc003-3.jpg
b.
  
mc003-2.jpg
d.

mc003-4.jpg
 

 4. 

Which factors are missing from this factor rainbow?

      mc004-1.jpg
a.
A = 2, B = 5, C = 20
b.
A = 2, B = 6, C = 30
c.
A = 4, B = 6, C = 25
 

 5. 

Which factors are missing from this factor rainbow?

                mc005-1.jpg
a.
A = 1, B = 3, C = 10
b.
A = 1, B = 4, C = 6
c.
A = 1, B = 4, C = 8
 

 6. 

Which lists all the factors of 45?
a.
1, 3, 15, 45
c.
1, 3, 5, 6, 9, 10, 45
b.
3, 5, 9, 15
d.
1, 3, 5, 9, 15, 45
 

 7. 

Which lists all the factors of 76?
a.
1, 2, 3, 12, 76
c.
1, 2, 38, 76
b.
1, 2, 4, 19, 38, 76
d.
1, 2, 3, 23, 38, 76
 

 8. 

Jake has 36 wooden cubes that he is joining together to form storage shelf for his collection of CDs.

             mc008-1.jpg
Jake arranges the cubes in an array so that they form a square. How does Jake arrange the cubes?
a.
4-by-9
b.
6-by-6
c.
3-by-12
d.
2-by-18
 

 9. 

Diedra is making a quilt using the design shown below.

              mc009-1.jpg

She has 108 squares. She decides to have 12 rows. How many squares will she place in each row?

a.
8
b.
12
c.
7
d.
9
 

 10. 

Which number has the factors that include 3, 4, and 5?
a.
90
b.
120
c.
100
d.
75
 



 
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