Long Multiplication: 180 × 5

"Long Multiplication Calculator" Calculator

Multiplicand (number to be multiplied)

Multiplier (number to multiply by)

What is 180 × 5?

Answer

180 × 5 = 900

180 × 5 and 5 × 180 are the same product — the order of the factors never changes the answer, only the working. Below, 180 is multiplied by 5 in a column, digit by digit.

180 × 5 in a Column

The multiplicand goes on top, the multiplier underneath, both aligned on the right. The multiplier has a single digit, so there is one partial product and the answer goes straight under the line.

 180
×  5
 900
180 × 5 = 900

Step-by-Step Solution

Step 1: Multiply the multiplicand by the last digit of the multiplier, 5: 180 × 5 = 900.

  • 0 × 5 = 0. Write 0.
  • 8 × 5 = 40. Write 0 and carry 4.
  • 1 × 5 = 5, plus the carried 4 makes 9. Write 9.

180 × 5

=

900

Check It, and What It Is Not

Check by dividing back. Multiplication and division undo each other, so 900 ÷ 5 = 180 must come out exactly, with no remainder.

Fractions are a different calculation. Both factors here are whole numbers; for 2/3 or 2 3/4 use the fraction multiplication calculator, which multiplies numerators and denominators separately.

180 × 5 is a number, not an area. If those are the sides of a room in feet, the answer is 900 square feet — the same arithmetic, a different question, and it is answered by the square footage calculator.

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About "Long Multiplication Calculator" Calculator

This calculator multiplies two whole numbers the way it is done on paper: digit by digit, carrying where the column overflows, then adding the partial products together. For example, it can help you find out what is 180 × 5? (The answer is: 900). Enter the multiplicand (e.g. '180') and the multiplier (e.g. '5') and hit the button. The order of the two numbers does not matter — 180 × 5 and 5 × 180 are the same product — so either number can go on top. Fractions and mixed numbers belong to the fraction multiplication calculator, and the reverse operation is long division.

"Long Multiplication Calculator" Calculator

Multiplicand (number to be multiplied)

Multiplier (number to multiply by)

Products of 180

MultiplicationProduct
98 × 5490
99 × 5495
100 × 5500
110 × 5550
120 × 5600
130 × 5650
140 × 5700
150 × 5750
160 × 5800
170 × 5850
180 × 5900
190 × 5950
200 × 51,000
210 × 51,050
220 × 51,100
230 × 51,150
240 × 51,200
250 × 51,250
260 × 51,300
270 × 51,350

FAQ

What is 180 × 5?

180 × 5 = 900

Is 180 × 5 the same as 5 × 180?

Yes. Multiplication is commutative, so both come to 900. Only the working differs: this page multiplies by 5, which gives a single partial product.

How do you check that 180 × 5 = 900?

Divide the product back by one of the factors: 900 ÷ 5 = 180 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 180 × 5?

There is only one: the multiplier 5 has a single digit, so 180 × 5 = 900 is written straight under the line, with no addition step.

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