How to calculate 42 multiplied by 42 using long multiplication

How to calculate 42 multiplied by 42

How to calculate 42 multiplied by 42 using long multiplication. Here is step-by-step how to calculate 42 times 42 using long multiplication:

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

	4	2
x	4	2

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

	0
	4	2
x	4	2
		4

Step 3: Multiply
2 x 4 = 8. Take 8 and add 0 from the previous step to get 8. Enter 8 at the bottom:

	4	2
x	4	2
	8	4

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

	4	2
x	4	2
	8	4
+		0

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

	0
	4	2
x	4	2
	8	4
+	8	0

Step 6: Multiply
4 x 4 = 16. Take 16 and add 0 from the previous step to get 16. Enter 16 at the bottom:

			4	2
x			4	2
			8	4
+	1	6	8	0

Step 7: Add to get answer
Add up the bottom two numbers (84 + 1680 = 1764) to get the answer:

			4	2
x			4	2
			8	4
+	1	6	8	0
=	1	7	6	4

The bottom line is the answer. Therefore, 42 times 42 equals:

1764

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How to calculate 43 multiplied by 42
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