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Math K-Plus

Arithmetic - Learn How To Solve Complex Multiplication Problems

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Learn How To Multiply Numbers



Solve A Complex Multiply Numbers Problem
Step 1

First, state the problem. We want to multiply the number 9 by the number 2.
Step 2

Next we multiply numbers 9 and 2; the answer (product) of 2 times 9 is 18.  Bring the 8 down in column A (one column) and carry the 1 to the tens column B.
Step 3

Last step is to bring the carried 1 in the tens column down to the answer (product) line. We now have the complete answer to 2 times 9 which is 18.
Step 4

Complete answer to 2 x 9 = 9 + 9 = 18.
 CBA
    
  9
 x 2
———
    
 CBA
  1 
   9
 x 2
———
   8
  1 
   9
 x 2
———
   18
  1 
   9
 x 2
———
   18



Solve Multiplication Problem 153 Times 24
Step 1

Now let's look at the easiest way to multiply two numbers.
Step 2

Here we have the standard way of multiplying two numbers.

Multiply the first number:
153 x 4 = 612


Multiply the second number:
153 x 2 = 306


Now add the two numbers as shown below to get the answer (product) of the multiplication problem:
    
     612
 + 306  
——————
   3672 




     +153
    × +24
  ———————


      153
    ×  24
  ———————


       1
      153
    ×  24
  ———————
        2



      21 
      153
    ×  24
  ———————
       12



      21 
      153
    ×  24
  ———————
      612



      21 
      153
    ×  24
  ———————
      612



         
      153
    ×  24
  ———————
      612
       6



     1   
      153
    ×  24
  ———————
      612
      06 



     1   
      153
    ×  24
  ———————
      612
     306 



     1   
      153
    ×  24
  ———————
      612
     306 



         
      153
    ×  24
  ———————
      612
     306 
  ———————
    +3672