Long Multiplication: 400 × 9

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

What is 400 × 9?

Answer

400 × 9 =
3,600

One partial product: 400 × 9 = 3,600. 9 × 400 gives the same 3,600.

400 × 9 in a column

400
×9
3600

In the column: product 3,600.

Step by step: 400 × 9

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 9: 400 × 9 = 3,600.
    • 0 × 9 = 0. Write 0.
    • 0 × 9 = 0. Write 0.
    • 4 × 9 = 36. Write 6 and carry 3.
    • No digits are left, so the carried 3 is written in front: the partial product is 3,600.
  2. Product3,600

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Recalculate with different values ↑

Products of 400

MultiplicationProduct
300 × 92,700
310 × 92,790
320 × 92,880
330 × 92,970
340 × 93,060
350 × 93,150
360 × 93,240
370 × 93,330
380 × 93,420
390 × 93,510
400 × 93,600
410 × 93,690
420 × 93,780
430 × 93,870
440 × 93,960
450 × 94,050
460 × 94,140
470 × 94,230
480 × 94,320
490 × 94,410

FAQ

What is 400 × 9?

400 × 9 = 3,600

Is 400 × 9 the same as 9 × 400?

Yes. Multiplication is commutative, so both come to 3,600. Only the working differs: this page multiplies by 9, which gives a single partial product.

How do you check that 400 × 9 = 3,600?

Divide the product back by one of the factors: 3,600 ÷ 9 = 400 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 400 × 9?

There is only one: the multiplier 9 has a single digit, so 400 × 9 = 3,600 is written straight under the line, with no addition step.

See Also