How to calculate 99 multiplied by 98 using long multiplication

How to calculate 99 multiplied by 98

How to calculate 99 multiplied by 98 using long multiplication. Here is step-by-step how to calculate 99 times 98 using long multiplication:

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

	9	9
x	9	8

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

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

Step 5: Multiply
9 x 9 = 81. Put 1 below the line and 8 as a reminder on top:

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

Step 6: Multiply
9 x 9 = 81. Take 81 and add 8 from the previous step to get 89. Enter 89 at the bottom:

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

Step 7: Add to get answer
Add up the bottom two numbers (792 + 8910 = 9702) to get the answer:

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

The bottom line is the answer. Therefore, 99 times 98 equals:

9702

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How to calculate 99 multiplied by 99
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