Long Multiplication: 400 × 3

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

What is 400 × 3?

Answer

400 × 3 =
1,200

One partial product: 400 × 3 = 1,200. 3 × 400 gives the same 1,200.

400 × 3 in a column

400
×3
1200

In the column: product 1,200.

Step by step: 400 × 3

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 3: 400 × 3 = 1,200.
    • 0 × 3 = 0. Write 0.
    • 0 × 3 = 0. Write 0.
    • 4 × 3 = 12. Write 2 and carry 1.
    • No digits are left, so the carried 1 is written in front: the partial product is 1,200.
  2. Product1,200

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Recalculate with different values ↑

Products of 400

MultiplicationProduct
300 × 3900
310 × 3930
320 × 3960
330 × 3990
340 × 31,020
350 × 31,050
360 × 31,080
370 × 31,110
380 × 31,140
390 × 31,170
400 × 31,200
410 × 31,230
420 × 31,260
430 × 31,290
440 × 31,320
450 × 31,350
460 × 31,380
470 × 31,410
480 × 31,440
490 × 31,470

FAQ

What is 400 × 3?

400 × 3 = 1,200

Is 400 × 3 the same as 3 × 400?

Yes. Multiplication is commutative, so both come to 1,200. Only the working differs: this page multiplies by 3, which gives a single partial product.

How do you check that 400 × 3 = 1,200?

Divide the product back by one of the factors: 1,200 ÷ 3 = 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 × 3?

There is only one: the multiplier 3 has a single digit, so 400 × 3 = 1,200 is written straight under the line, with no addition step.

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