How to calculate 81 multiplied by 77 using long multiplication

How to calculate 81 multiplied by 77

How to calculate 81 multiplied by 77 using long multiplication. Here is step-by-step how to calculate 81 times 77 using long multiplication:

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

	8	1
x	7	7

Step 2: Multiply
1 x 7 = 7. Put 7 below the line and 0 as a reminder on top:

	0
	8	1
x	7	7
		7

Step 3: Multiply
7 x 8 = 56. Take 56 and add 0 from the previous step to get 56. Enter 56 at the bottom:

		8	1
x		7	7
	5	6	7

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

		8	1
x		7	7
	5	6	7
+			0

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

		0
		8	1
x		7	7
	5	6	7
+		7	0

Step 6: Multiply
7 x 8 = 56. Take 56 and add 0 from the previous step to get 56. Enter 56 at the bottom:

			8	1
x			7	7
		5	6	7
+	5	6	7	0

Step 7: Add to get answer
Add up the bottom two numbers (567 + 5670 = 6237) to get the answer:

			8	1
x			7	7
		5	6	7
+	5	6	7	0
=	6	2	3	7

The bottom line is the answer. Therefore, 81 times 77 equals:

6237

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How to calculate 82 multiplied by 77
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