How to calculate 45 multiplied by 15 using long multiplication

How to calculate 45 multiplied by 15

How to calculate 45 multiplied by 15 using long multiplication. Here is step-by-step how to calculate 45 times 15 using long multiplication:

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

	4	5
x	1	5

Step 2: Multiply
5 x 5 = 25. Put 5 below the line and 2 as a reminder on top:

	2
	4	5
x	1	5
		5

Step 3: Multiply
5 x 4 = 20. Take 20 and add 2 from the previous step to get 22. Enter 22 at the bottom:

		4	5
x		1	5
	2	2	5

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

		4	5
x		1	5
	2	2	5
+			0

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

		0
		4	5
x		1	5
	2	2	5
+		5	0

Step 6: Multiply
1 x 4 = 4. Take 4 and add 0 from the previous step to get 4. Enter 4 at the bottom:

		4	5
x		1	5
	2	2	5
+	4	5	0

Step 7: Add to get answer
Add up the bottom two numbers (225 + 450 = 675) to get the answer:

		4	5
x		1	5
	2	2	5
+	4	5	0
=	6	7	5

The bottom line is the answer. Therefore, 45 times 15 equals:

675

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How to calculate 46 multiplied by 15
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