How to calculate 77 multiplied by 15 using long multiplication

How to calculate 77 multiplied by 15

How to calculate 77 multiplied by 15 using long multiplication. Here is step-by-step how to calculate 77 times 15 using long multiplication:

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

	7	7
x	1	5

Step 2: Multiply
7 x 5 = 35. Put 5 below the line and 3 as a reminder on top:

	3
	7	7
x	1	5
		5

Step 3: Multiply
5 x 7 = 35. Take 35 and add 3 from the previous step to get 38. Enter 38 at the bottom:

		7	7
x		1	5
	3	8	5

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		1	5
	3	8	5
+			0

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

		0
		7	7
x		1	5
	3	8	5
+		7	0

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

		7	7
x		1	5
	3	8	5
+	7	7	0

Step 7: Add to get answer
Add up the bottom two numbers (385 + 770 = 1155) to get the answer:

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

The bottom line is the answer. Therefore, 77 times 15 equals:

1155

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How to calculate 78 multiplied by 15
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