How to calculate 87 multiplied by 15


Long Multiplication

How to calculate 87 multiplied by 15 using long multiplication. Here is step-by-step how to calculate 87 times 15 using long multiplication:

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

              8 7
      x       1 5
                 

Step 2: Multiply
7 x 5 = 35. Put 5 below the line and 3 as a reminder on top:

              3  
              8 7
      x       1 5
                5

Step 3: Multiply
5 x 8 = 40. Take 40 and add 3 from the previous step to get 43. Enter 43 at the bottom:

              8 7
      x       1 5
            4 3 5

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

              8 7
      x       1 5
            4 3 5
      +         0

Step 5: Multiply
1 x 7 = 7. Put 7 below the line and 0 as a reminder on top:

              0  
              8 7
      x       1 5
            4 3 5
      +       7 0

Step 6: Multiply
1 x 8 = 8. Take 8 and add 0 from the previous step to get 8. Enter 8 at the bottom:

              8 7
      x       1 5
            4 3 5
      +     8 7 0

Step 7: Add to get answer
Add up the bottom two numbers (435 + 870 = 1305) to get the answer:

              8 7
      x       1 5
            4 3 5
      +     8 7 0
      =   1 3 0 5

The bottom line is the answer. Therefore, 87 times 15 equals:

1305


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How to calculate 88 multiplied by 15
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