How to calculate 20 multiplied by 19 using long multiplication

How to calculate 20 multiplied by 19

How to calculate 20 multiplied by 19 using long multiplication. Here is step-by-step how to calculate 20 times 19 using long multiplication:

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

	2	0
x	1	9

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

	0
	2	0
x	1	9
		0

Step 3: Multiply
9 x 2 = 18. Take 18 and add 0 from the previous step to get 18. Enter 18 at the bottom:

		2	0
x		1	9
	1	8	0

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

		2	0
x		1	9
	1	8	0
+			0

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

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

Step 6: Multiply
1 x 2 = 2. Take 2 and add 0 from the previous step to get 2. Enter 2 at the bottom:

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

Step 7: Add to get answer
Add up the bottom two numbers (180 + 200 = 380) to get the answer:

		2	0
x		1	9
	1	8	0
+	2	0	0
=	3	8	0

The bottom line is the answer. Therefore, 20 times 19 equals:

380

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How to calculate 21 multiplied by 19
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