Long Multiplication: 64 × 9

"Long Multiplication Calculator" Calculator

Multiplicand (number to be multiplied)

Multiplier (number to multiply by)

What is 64 × 9?

Answer

64 × 9 = 576

64 × 9 and 9 × 64 are the same product — the order of the factors never changes the answer, only the working. Below, 64 is multiplied by 9 in a column, digit by digit.

64 × 9 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.

  64
×  9
 576
64 × 9 = 576

Step-by-Step Solution

Step 1: Multiply the multiplicand by the last digit of the multiplier, 9: 64 × 9 = 576.

  • 4 × 9 = 36. Write 6 and carry 3.
  • 6 × 9 = 54, plus the carried 3 makes 57. Write 7 and carry 5.
  • No digits are left, so the carried 5 is written in front: the partial product is 576.

64 × 9

=

576

Check It, and What It Is Not

Check by dividing back. Multiplication and division undo each other, so 576 ÷ 9 = 64 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.

64 × 9 is a number, not an area. If those are the sides of a room in feet, the answer is 576 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 64 × 9? (The answer is: 576). Enter the multiplicand (e.g. '64') and the multiplier (e.g. '9') and hit the button. The order of the two numbers does not matter — 64 × 9 and 9 × 64 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 64

MultiplicationProduct
54 × 9486
55 × 9495
56 × 9504
57 × 9513
58 × 9522
59 × 9531
60 × 9540
61 × 9549
62 × 9558
63 × 9567
64 × 9576
65 × 9585
66 × 9594
67 × 9603
68 × 9612
69 × 9621
70 × 9630
71 × 9639
72 × 9648
73 × 9657

FAQ

What is 64 × 9?

64 × 9 = 576

Is 64 × 9 the same as 9 × 64?

Yes. Multiplication is commutative, so both come to 576. Only the working differs: this page multiplies by 9, which gives a single partial product.

How do you check that 64 × 9 = 576?

Divide the product back by one of the factors: 576 ÷ 9 = 64 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 64 × 9?

There is only one: the multiplier 9 has a single digit, so 64 × 9 = 576 is written straight under the line, with no addition step.

See Also