How to calculate 78 multiplied by 72


Long Multiplication

How to calculate 78 multiplied by 72 using long multiplication. Here is step-by-step how to calculate 78 times 72 using long multiplication:

Step 1: Setup
Set up your multiplication problem like this:

              7 8
      x       7 2
                 

Step 2: Multiply
8 x 2 = 16. Put 6 below the line and 1 as a reminder on top:

              1  
              7 8
      x       7 2
                6

Step 3: Multiply
2 x 7 = 14. Take 14 and add 1 from the previous step to get 15. Enter 15 at the bottom:

              7 8
      x       7 2
            1 5 6

Step 4: Add 0
Enter a 0 at the bottom right as a place holder, because you now move over one digit:

              7 8
      x       7 2
            1 5 6
      +         0

Step 5: Multiply
7 x 8 = 56. Put 6 below the line and 5 as a reminder on top:

              5  
              7 8
      x       7 2
            1 5 6
      +       6 0

Step 6: Multiply
7 x 7 = 49. Take 49 and add 5 from the previous step to get 54. Enter 54 at the bottom:

              7 8
      x       7 2
            1 5 6
      +   5 4 6 0

Step 7: Add to get answer
Add up the bottom two numbers (156 + 5460 = 5616) to get the answer:

              7 8
      x       7 2
            1 5 6
      +   5 4 6 0
      =   5 6 1 6

The bottom line is the answer. Therefore, 78 times 72 equals:

5616


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How to calculate 79 multiplied by 72
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