How to calculate 99 multiplied by 91 using long multiplication

How to calculate 99 multiplied by 91

How to calculate 99 multiplied by 91 using long multiplication. Here is step-by-step how to calculate 99 times 91 using long multiplication:

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

	9	9
x	9	1

Step 2: Multiply
9 x 1 = 9. Put 9 below the line and 0 as a reminder on top:

	0
	9	9
x	9	1
		9

Step 3: 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	9	1
	9	9

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	1
	9	9
+		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	1
	9	9
+	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	1
			9	9
+	8	9	1	0

Step 7: Add to get answer
Add up the bottom two numbers (99 + 8910 = 9009) to get the answer:

			9	9
x			9	1
			9	9
+	8	9	1	0
=	9	0	0	9

The bottom line is the answer. Therefore, 99 times 91 equals:

9009

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How to calculate 92 multiplied by 92
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