How to calculate 47 multiplied by 45 using long multiplication

How to calculate 47 multiplied by 45

How to calculate 47 multiplied by 45 using long multiplication. Here is step-by-step how to calculate 47 times 45 using long multiplication:

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

	4	7
x	4	5

Step 2: Multiply
7 x 5 = 35. Put 5 below the line and 3 as a reminder on top:

	3
	4	7
x	4	5
		5

Step 3: Multiply
5 x 4 = 20. Take 20 and add 3 from the previous step to get 23. Enter 23 at the bottom:

		4	7
x		4	5
	2	3	5

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

		4	7
x		4	5
	2	3	5
+			0

Step 5: Multiply
4 x 7 = 28. Put 8 below the line and 2 as a reminder on top:

		2
		4	7
x		4	5
	2	3	5
+		8	0

Step 6: Multiply
4 x 4 = 16. Take 16 and add 2 from the previous step to get 18. Enter 18 at the bottom:

			4	7
x			4	5
		2	3	5
+	1	8	8	0

Step 7: Add to get answer
Add up the bottom two numbers (235 + 1880 = 2115) to get the answer:

			4	7
x			4	5
		2	3	5
+	1	8	8	0
=	2	1	1	5

The bottom line is the answer. Therefore, 47 times 45 equals:

2115

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How to calculate 48 multiplied by 45
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