
How to calculate 87 multiplied by 31 using long multiplication. Here is step-by-step how to calculate 87 times 31 using long multiplication:
Step 1: Setup
Set up your multiplication problem like this:
8 | 7 | |||||||
x | 3 | 1 | ||||||
Step 2: Multiply
7 x 1 = 7. Put 7 below the line and 0 as a reminder on top:
0 | ||||||||
8 | 7 | |||||||
x | 3 | 1 | ||||||
7 |
Step 3: 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 | 3 | 1 | ||||||
8 | 7 |
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 | 3 | 1 | ||||||
8 | 7 | |||||||
+ | 0 |
Step 5: Multiply
3 x 7 = 21. Put 1 below the line and 2 as a reminder on top:
2 | ||||||||
8 | 7 | |||||||
x | 3 | 1 | ||||||
8 | 7 | |||||||
+ | 1 | 0 |
Step 6: Multiply
3 x 8 = 24. Take 24 and add 2 from the previous step to get 26. Enter 26 at the bottom:
8 | 7 | |||||||
x | 3 | 1 | ||||||
8 | 7 | |||||||
+ | 2 | 6 | 1 | 0 |
Step 7: Add to get answer
Add up the bottom two numbers (87 + 2610 = 2697) to get the answer:
8 | 7 | |||||||
x | 3 | 1 | ||||||
8 | 7 | |||||||
+ | 2 | 6 | 1 | 0 | ||||
= | 2 | 6 | 9 | 7 |
The bottom line is the answer. Therefore, 87 times 31 equals:
2697
Long Multiplication Calculator
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How to calculate 88 multiplied by 31
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