How to calculate 24 multiplied by 21 using long multiplication

How to calculate 24 multiplied by 21

How to calculate 24 multiplied by 21 using long multiplication. Here is step-by-step how to calculate 24 times 21 using long multiplication:

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

	2	4
x	2	1

Step 2: Multiply
4 x 1 = 4. Put 4 below the line and 0 as a reminder on top:

	0
	2	4
x	2	1
		4

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

	2	4
x	2	1
	2	4

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

	2	4
x	2	1
	2	4
+		0

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

	0
	2	4
x	2	1
	2	4
+	8	0

Step 6: Multiply
2 x 2 = 4. Take 4 and add 0 from the previous step to get 4. Enter 4 at the bottom:

		2	4
x		2	1
		2	4
+	4	8	0

Step 7: Add to get answer
Add up the bottom two numbers (24 + 480 = 504) to get the answer:

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

The bottom line is the answer. Therefore, 24 times 21 equals:

504

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How to calculate 25 multiplied by 21
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