Long Multiplication: 800 × 3

Long Multiplication Calculator
Multiplicand (number to be multiplied)
Multiplier (number to multiply by)

What is 800 × 3?

Answer

800 × 3 =
2,400

800 × 3 and 3 × 800 are the same product — the order of the factors never changes the answer, only the working. Below, 800 is multiplied by 3 in a column, digit by digit.

800 × 3 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.

  800
×   3
 2400
800 × 3 = 2,400

Step-by-Step Solution

Step 1: Multiply the multiplicand by the last digit of the multiplier, 3: 800 × 3 = 2,400.

  • 0 × 3 = 0. Write 0.
  • 0 × 3 = 0. Write 0.
  • 8 × 3 = 24. Write 4 and carry 2.
  • No digits are left, so the carried 2 is written in front: the partial product is 2,400.

800 × 3

=

2,400

Check It, and What It Is Not

Check by dividing back. Multiplication and division undo each other, so 2,400 ÷ 3 = 800 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.

800 × 3 is a number, not an area. If those are the sides of a room in feet, the answer is 2,400 square feet — the same arithmetic, a different question, and it is answered by the square footage calculator.

Related Calculations

See Also

Long Multiplication 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 800 × 3? (The answer is: 2,400). Enter the multiplicand (e.g. '800') and the multiplier (e.g. '3') and hit the button. The order of the two numbers does not matter — 800 × 3 and 3 × 800 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.
Recalculate with different values ↑

Products of 800

MultiplicationProduct
700 × 32,100
710 × 32,130
720 × 32,160
730 × 32,190
740 × 32,220
750 × 32,250
760 × 32,280
770 × 32,310
780 × 32,340
790 × 32,370
800 × 32,400
810 × 32,430
820 × 32,460
830 × 32,490
840 × 32,520
850 × 32,550
860 × 32,580
870 × 32,610
880 × 32,640
890 × 32,670

FAQ

What is 800 × 3?

800 × 3 = 2,400

Is 800 × 3 the same as 3 × 800?

Yes. Multiplication is commutative, so both come to 2,400. Only the working differs: this page multiplies by 3, which gives a single partial product.

How do you check that 800 × 3 = 2,400?

Divide the product back by one of the factors: 2,400 ÷ 3 = 800 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 800 × 3?

There is only one: the multiplier 3 has a single digit, so 800 × 3 = 2,400 is written straight under the line, with no addition step.

See Also