How to Multiply 2 Digit Numbers By 2 Digit Numbers

 When you first start to multiply a two digit by a two digit, you multiply the ones by the ones. If it has two digits, carry the digit in the tens place over. Then you would
                                                                        add it to the product.
Example:  13                                                  The second step is to multiply the tens by 
                x12                                                  the ones. If it has 2 digits, write both        
                                                                         below the number.
Step 1: Ones x Ones                                      On the third step, mark out the ones and
                                                                         add a zero on a new row. You do this  
                     13    3x2=6                                because you are moving a place over.
                   x12                                                  The fourth step is to multiply the ones 
                       6                                                by the tens. Stay on this new row you 
                                                                         created in the last step. This step and the
Step 2: Tens x Ones                                    fifth are just like the two except for that
                     13                                               you are multiplying in the tens, not the
                   x12      1x2=2                              ones. 
                     26                                                   Then, like the second step in a way,                                                                          you multiply the tens by the tens. You
                                                                         will still continue to stay on the new 
Step 3: Mark out ones, add 0                    row. The last step is to add up both the 
                      13                                               rows. The product is the sum of the 
                    x12                                               two numbers.
                      26
                        0

Step 4: Ones x Tens
                      13    3x1=3
                    x12
                      26
                      30

Step 5: Tens x Tens
                      13    1x1=1
                    x12
                      26
                    130

Step 6: Add
                      13
                    x12
                      26
                  +130
                    156

Watch my video for more:
https://www.youtube.com/watch?v=NLHCl6RGS74

                    

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