How to calculate 77 multiplied by 77 using long multiplication

How to calculate 77 multiplied by 77

How to calculate 77 multiplied by 77 using long multiplication. Here is step-by-step how to calculate 77 times 77 using long multiplication:

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

	7	7
x	7	7

Step 2: Multiply
7 x 7 = 49. Put 9 below the line and 4 as a reminder on top:

	4
	7	7
x	7	7
		9

Step 3: Multiply
7 x 7 = 49. Take 49 and add 4 from the previous step to get 53. Enter 53 at the bottom:

		7	7
x		7	7
	5	3	9

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

		7	7
x		7	7
	5	3	9
+			0

Step 5: Multiply
7 x 7 = 49. Put 9 below the line and 4 as a reminder on top:

		4
		7	7
x		7	7
	5	3	9
+		9	0

Step 6: Multiply
7 x 7 = 49. Take 49 and add 4 from the previous step to get 53. Enter 53 at the bottom:

			7	7
x			7	7
		5	3	9
+	5	3	9	0

Step 7: Add to get answer
Add up the bottom two numbers (539 + 5390 = 5929) to get the answer:

			7	7
x			7	7
		5	3	9
+	5	3	9	0
=	5	9	2	9

The bottom line is the answer. Therefore, 77 times 77 equals:

5929

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How to calculate 78 multiplied by 77
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