How to calculate 99 multiplied by 15 using long multiplication

How to calculate 99 multiplied by 15

How to calculate 99 multiplied by 15 using long multiplication. Here is step-by-step how to calculate 99 times 15 using long multiplication:

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

	9	9
x	1	5

Step 2: Multiply
9 x 5 = 45. Put 5 below the line and 4 as a reminder on top:

	4
	9	9
x	1	5
		5

Step 3: Multiply
5 x 9 = 45. Take 45 and add 4 from the previous step to get 49. Enter 49 at the bottom:

		9	9
x		1	5
	4	9	5

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

		9	9
x		1	5
	4	9	5
+			0

Step 5: Multiply
1 x 9 = 9. Put 9 below the line and 0 as a reminder on top:

		0
		9	9
x		1	5
	4	9	5
+		9	0

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

		9	9
x		1	5
	4	9	5
+	9	9	0

Step 7: Add to get answer
Add up the bottom two numbers (495 + 990 = 1485) to get the answer:

			9	9
x			1	5
		4	9	5
+		9	9	0
=	1	4	8	5

The bottom line is the answer. Therefore, 99 times 15 equals:

1485

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