How to calculate 31 multiplied by 31 using long multiplication

How to calculate 31 multiplied by 31

How to calculate 31 multiplied by 31 using long multiplication. Here is step-by-step how to calculate 31 times 31 using long multiplication:

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

	3	1
x	3	1

Step 2: Multiply
1 x 1 = 1. Put 1 below the line and 0 as a reminder on top:

	0
	3	1
x	3	1
		1

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

	3	1
x	3	1
	3	1

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

	3	1
x	3	1
	3	1
+		0

Step 5: Multiply
3 x 1 = 3. Put 3 below the line and 0 as a reminder on top:

	0
	3	1
x	3	1
	3	1
+	3	0

Step 6: Multiply
3 x 3 = 9. Take 9 and add 0 from the previous step to get 9. Enter 9 at the bottom:

		3	1
x		3	1
		3	1
+	9	3	0

Step 7: Add to get answer
Add up the bottom two numbers (31 + 930 = 961) to get the answer:

		3	1
x		3	1
		3	1
+	9	3	0
=	9	6	1

The bottom line is the answer. Therefore, 31 times 31 equals:

961

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How to calculate 32 multiplied by 31
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