How to calculate 51 multiplied by 39 using long multiplication. Here is step-by-step how to calculate 51 times 39 using long multiplication:
Step 1: Setup
Set up your multiplication problem like this:
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
Step 2: Multiply
1 x 9 = 9. Put 9 below the line and 0 as a reminder on top:
| 0 | ||||||||
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
| 9 |
Step 3: Multiply
9 x 5 = 45. Take 45 and add 0 from the previous step to get 45. Enter 45 at the bottom:
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
| 4 | 5 | 9 |
Step 4: Add 0
Enter a 0 at the bottom right as a place holder, because you now move over one digit:
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
| 4 | 5 | 9 | ||||||
| + | 0 |
Step 5: Multiply
3 x 1 = 3. Put 3 below the line and 0 as a reminder on top:
| 0 | ||||||||
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
| 4 | 5 | 9 | ||||||
| + | 3 | 0 |
Step 6: Multiply
3 x 5 = 15. Take 15 and add 0 from the previous step to get 15. Enter 15 at the bottom:
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
| 4 | 5 | 9 | ||||||
| + | 1 | 5 | 3 | 0 |
Step 7: Add to get answer
Add up the bottom two numbers (459 + 1530 = 1989) to get the answer:
| 5 | 1 | |||||||
| x | 3 | 9 | ||||||
| 4 | 5 | 9 | ||||||
| + | 1 | 5 | 3 | 0 | ||||
| = | 1 | 9 | 8 | 9 |
The bottom line is the answer. Therefore, 51 times 39 equals:
1989
Long Multiplication Calculator
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How to calculate 52 multiplied by 39
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