How to calculate 99 multiplied by 18 using long multiplication

How to calculate 99 multiplied by 18

How to calculate 99 multiplied by 18 using long multiplication. Here is step-by-step how to calculate 99 times 18 using long multiplication:

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

	9	9
x	1	8

Step 2: Multiply
9 x 8 = 72. Put 2 below the line and 7 as a reminder on top:

	7
	9	9
x	1	8
		2

Step 3: Multiply
8 x 9 = 72. Take 72 and add 7 from the previous step to get 79. Enter 79 at the bottom:

		9	9
x		1	8
	7	9	2

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	8
	7	9	2
+			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	8
	7	9	2
+		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	8
	7	9	2
+	9	9	0

Step 7: Add to get answer
Add up the bottom two numbers (792 + 990 = 1782) to get the answer:

			9	9
x			1	8
		7	9	2
+		9	9	0
=	1	7	8	2

The bottom line is the answer. Therefore, 99 times 18 equals:

1782

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