How to calculate 72 multiplied by 42


Long Multiplication

How to calculate 72 multiplied by 42 using long multiplication. Here is step-by-step how to calculate 72 times 42 using long multiplication:

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

              7 2
      x       4 2
                 

Step 2: Multiply
2 x 2 = 4. Put 4 below the line and 0 as a reminder on top:

              0  
              7 2
      x       4 2
                4

Step 3: Multiply
2 x 7 = 14. Take 14 and add 0 from the previous step to get 14. Enter 14 at the bottom:

              7 2
      x       4 2
            1 4 4

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

              7 2
      x       4 2
            1 4 4
      +         0

Step 5: Multiply
4 x 2 = 8. Put 8 below the line and 0 as a reminder on top:

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

Step 6: Multiply
4 x 7 = 28. Take 28 and add 0 from the previous step to get 28. Enter 28 at the bottom:

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

Step 7: Add to get answer
Add up the bottom two numbers (144 + 2880 = 3024) to get the answer:

              7 2
      x       4 2
            1 4 4
      +   2 8 8 0
      =   3 0 2 4

The bottom line is the answer. Therefore, 72 times 42 equals:

3024


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How to calculate 73 multiplied by 42
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