How to calculate 48 multiplied by 45 using long multiplication

How to calculate 48 multiplied by 45

How to calculate 48 multiplied by 45 using long multiplication. Here is step-by-step how to calculate 48 times 45 using long multiplication:

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

	4	8
x	4	5

Step 2: Multiply
8 x 5 = 40. Put 0 below the line and 4 as a reminder on top:

	4
	4	8
x	4	5
		0

Step 3: Multiply
5 x 4 = 20. Take 20 and add 4 from the previous step to get 24. Enter 24 at the bottom:

		4	8
x		4	5
	2	4	0

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

		4	8
x		4	5
	2	4	0
+			0

Step 5: Multiply
4 x 8 = 32. Put 2 below the line and 3 as a reminder on top:

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

Step 6: Multiply
4 x 4 = 16. Take 16 and add 3 from the previous step to get 19. Enter 19 at the bottom:

			4	8
x			4	5
		2	4	0
+	1	9	2	0

Step 7: Add to get answer
Add up the bottom two numbers (240 + 1920 = 2160) to get the answer:

			4	8
x			4	5
		2	4	0
+	1	9	2	0
=	2	1	6	0

The bottom line is the answer. Therefore, 48 times 45 equals:

2160

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How to calculate 49 multiplied by 45
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