How to calculate 15 multiplied by 12 using long multiplication

How to calculate 15 multiplied by 12

How to calculate 15 multiplied by 12 using long multiplication. Here is step-by-step how to calculate 15 times 12 using long multiplication:

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

	1	5
x	1	2

Step 2: Multiply
5 x 2 = 10. Put 0 below the line and 1 as a reminder on top:

	1
	1	5
x	1	2
		0

Step 3: Multiply
2 x 1 = 2. Take 2 and add 1 from the previous step to get 3. Enter 3 at the bottom:

	1	5
x	1	2
	3	0

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

	1	5
x	1	2
	3	0
+		0

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

	0
	1	5
x	1	2
	3	0
+	5	0

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

		1	5
x		1	2
		3	0
+	1	5	0

Step 7: Add to get answer
Add up the bottom two numbers (30 + 150 = 180) to get the answer:

		1	5
x		1	2
		3	0
+	1	5	0
=	1	8	0

The bottom line is the answer. Therefore, 15 times 12 equals:

180

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How to calculate 16 multiplied by 12
Here is the next multiplication problem in our math book that we solved with long multiplication.