Long Multiplication: 420 × 8

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

What is 420 × 8?

Answer

420 × 8 =
3,360

One partial product: 420 × 8 = 3,360. 8 × 420 gives the same 3,360.

420 × 8 in a column

420
×8
3360

In the column: product 3,360.

Step by step: 420 × 8

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 8: 420 × 8 = 3,360.
    • 0 × 8 = 0. Write 0.
    • 2 × 8 = 16. Write 6 and carry 1.
    • 4 × 8 = 32, plus the carried 1 makes 33. Write 3 and carry 3.
    • No digits are left, so the carried 3 is written in front: the partial product is 3,360.
  2. Product3,360

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Recalculate with different values ↑

Products of 420

MultiplicationProduct
320 × 82,560
330 × 82,640
340 × 82,720
350 × 82,800
360 × 82,880
370 × 82,960
380 × 83,040
390 × 83,120
400 × 83,200
410 × 83,280
420 × 83,360
430 × 83,440
440 × 83,520
450 × 83,600
460 × 83,680
470 × 83,760
480 × 83,840
490 × 83,920
500 × 84,000
510 × 84,080

FAQ

What is 420 × 8?

420 × 8 = 3,360

Is 420 × 8 the same as 8 × 420?

Yes. Multiplication is commutative, so both come to 3,360. Only the working differs: this page multiplies by 8, which gives a single partial product.

How do you check that 420 × 8 = 3,360?

Divide the product back by one of the factors: 3,360 ÷ 8 = 420 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 420 × 8?

There is only one: the multiplier 8 has a single digit, so 420 × 8 = 3,360 is written straight under the line, with no addition step.

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