How to calculate 79 multiplied by 45 using long multiplication

How to calculate 79 multiplied by 45

How to calculate 79 multiplied by 45 using long multiplication. Here is step-by-step how to calculate 79 times 45 using long multiplication:

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

	7	9
x	4	5

Step 2: Multiply
9 x 5 = 45. Put 5 below the line and 4 as a reminder on top:

	4
	7	9
x	4	5
		5

Step 3: Multiply
5 x 7 = 35. Take 35 and add 4 from the previous step to get 39. Enter 39 at the bottom:

		7	9
x		4	5
	3	9	5

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

		7	9
x		4	5
	3	9	5
+			0

Step 5: Multiply
4 x 9 = 36. Put 6 below the line and 3 as a reminder on top:

		3
		7	9
x		4	5
	3	9	5
+		6	0

Step 6: Multiply
4 x 7 = 28. Take 28 and add 3 from the previous step to get 31. Enter 31 at the bottom:

			7	9
x			4	5
		3	9	5
+	3	1	6	0

Step 7: Add to get answer
Add up the bottom two numbers (395 + 3160 = 3555) to get the answer:

			7	9
x			4	5
		3	9	5
+	3	1	6	0
=	3	5	5	5

The bottom line is the answer. Therefore, 79 times 45 equals:

3555

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How to calculate 80 multiplied by 45
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