Long Multiplication: 720 × 7

"Long Multiplication Calculator" Calculator

Multiplicand (number to be multiplied)

Multiplier (number to multiply by)

What is 720 × 7?

Answer

720 × 7 = 5,040

720 × 7 and 7 × 720 are the same product — the order of the factors never changes the answer, only the working. Below, 720 is multiplied by 7 in a column, digit by digit.

720 × 7 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.

  720
×   7
 5040
720 × 7 = 5,040

Step-by-Step Solution

Step 1: Multiply the multiplicand by the last digit of the multiplier, 7: 720 × 7 = 5,040.

  • 0 × 7 = 0. Write 0.
  • 2 × 7 = 14. Write 4 and carry 1.
  • 7 × 7 = 49, plus the carried 1 makes 50. Write 0 and carry 5.
  • No digits are left, so the carried 5 is written in front: the partial product is 5,040.

720 × 7

=

5,040

Check It, and What It Is Not

Check by dividing back. Multiplication and division undo each other, so 5,040 ÷ 7 = 720 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.

720 × 7 is a number, not an area. If those are the sides of a room in feet, the answer is 5,040 square feet — the same arithmetic, a different question, and it is answered by the square footage calculator.

See Also

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 720 × 7? (The answer is: 5,040). Enter the multiplicand (e.g. '720') and the multiplier (e.g. '7') and hit the button. The order of the two numbers does not matter — 720 × 7 and 7 × 720 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 720

MultiplicationProduct
620 × 74,340
630 × 74,410
640 × 74,480
650 × 74,550
660 × 74,620
670 × 74,690
680 × 74,760
690 × 74,830
700 × 74,900
710 × 74,970
720 × 75,040
730 × 75,110
740 × 75,180
750 × 75,250
760 × 75,320
770 × 75,390
780 × 75,460
790 × 75,530
800 × 75,600
810 × 75,670

FAQ

What is 720 × 7?

720 × 7 = 5,040

Is 720 × 7 the same as 7 × 720?

Yes. Multiplication is commutative, so both come to 5,040. Only the working differs: this page multiplies by 7, which gives a single partial product.

How do you check that 720 × 7 = 5,040?

Divide the product back by one of the factors: 5,040 ÷ 7 = 720 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 720 × 7?

There is only one: the multiplier 7 has a single digit, so 720 × 7 = 5,040 is written straight under the line, with no addition step.

See Also