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Triple Times Triple Digit Multiplication

Lesson 1

 

Problem:

 

 

   459

x

 

   682

 

 

 

Solution
Step 1:

 

 

459

x

 

    682

1. Multiply 459 by 2

459 x 2 = 918

 

Solution
Step 1

Complete:       

 

 

  459

x

 

  682

  918

 Write the product under the units place.

 

Solution
Step 2:

 

 

459

x

 

  682

 

 

918

 

  2. Multiply 459 by 8.

  459 x 8 = 3672

                                   

Solution
Step 2

Complete:

 

 

  459

x

 

    682

 

 

       918

3672  x

 Write the product under the tens place.

 

Solution
Step 3:

 

 

459

x

 

   682

 

 

918

 

 

3672  x

 

  3. Multiply 459 by 6.

  459 x 6 = 2754

                                                                                                                   

 

Solution
Step 3

Complete:

 

 

  459

x

 

     682

 

 

       918

3672  x

 

 

2754  xx

 Write the product under the hundreds place.

                                                                                                               

 

Solution
Step 4:

 

 

    459

x

 

     682

 

 

         918

3672x

 

 

2754  xx

4. Add all these partial products.   

 

Solution
Step 4

Complete:

 

       459

x

    682

 

      918

    3672x

  2754  xx

313038

    Write the sum

 

 

 

Try two practice problems:

A.

 

 484

   x

 

 561

B.

 

129

   x

 

207



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