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The ideas in this multiplication lesson are taken from Division 2 ebook. Only a few examples of each problem type are shown; you should make more problems of each kind for the student.


Multiplying by 100 and other whole hundreds
Free lesson plan from HomeschoolMath.net

Fill in some of the MULTIPLICATION TABLE OF 100.

1 × 100 = ___

2 × 100 = ___

3 × 100 = ___

4 × 100 = ___

5 × 100 = ___

6 × 100 = ___

7 × 100 = ___

8 × 100 = ___

9 × 100 = ___

10 × 100 = ___

Example problems

1.  Remember multiplication is repeated addition.  So you can solve these problems by adding. Continue the patterns as you can.

1 × 200 = ____

2 × 200 = 

3 × 200 = ____

4 × 200 = ____

 

1 × 300 = ____

2 × 300 = ____

3 × 300 = ____

1 × 500 = ____

2 × 500 = ____

 

 
2.  For each multiplication, write two division sentences.

a. 100 × 4 = 400

400 × 4 = 100

400 × 100 = 4

b.   10 × 57 =  d.   100 × 3 = 
e.  2 × 300 = 

 

 

f.   200 × 3 =  h.   8 × 90 = 


3.  Multiply and compare.

10 × 5 = ___

100 × 5 = ___

10 × 9 = ___

100 × 9 = ___

10 × 10 = ___

100 × 10 = ___

6 × 70 = ___

60 × 7 = ___

5 × 90 = ___

50 × 9 = ___

20 × 9 = ___

90 × 2 = ___

 
4. Divide.  Think backwards of multiplication.

a.  480 × 12 = 
 
c.   480 × 10 = d.   200 × 20 =
e.  300 × 10 =
 
g.  600 × 100 = h.   600 × 200 =
m.  350 × 70 =
 
o.   220 × 11 = p.   220 × 110 =

 
5.  What numbers can you multiply to get the given number?  In other words, find factors for the given product. Find several different ones.  The first ones are given as examples.

a.

600 = 30 × 20

600 = 300 × 2

600 = 3 × 200

600 = 100 × 6

600 = 12 × 50

d.

200 =

e.

100 = 

 

 
   

h.

400 =

 

Next lesson: Distributive property

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Free math worksheets and practice - Adapted Mind



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