Long Multiplication: 420 × 2

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

What is 420 × 2?

Answer

420 × 2 =
840

One partial product: 420 × 2 = 840. 2 × 420 gives the same 840.

420 × 2 in a column

420
×2
840

In the column: product 840.

Step by step: 420 × 2

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 2: 420 × 2 = 840.
    • 0 × 2 = 0. Write 0.
    • 2 × 2 = 4. Write 4.
    • 4 × 2 = 8. Write 8.
  2. Product840

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Recalculate with different values ↑

Products of 420

MultiplicationProduct
320 × 2640
330 × 2660
340 × 2680
350 × 2700
360 × 2720
370 × 2740
380 × 2760
390 × 2780
400 × 2800
410 × 2820
420 × 2840
430 × 2860
440 × 2880
450 × 2900
460 × 2920
470 × 2940
480 × 2960
490 × 2980
500 × 21,000
510 × 21,020

FAQ

What is 420 × 2?

420 × 2 = 840

Is 420 × 2 the same as 2 × 420?

Yes. Multiplication is commutative, so both come to 840. Only the working differs: this page multiplies by 2, which gives a single partial product.

How do you check that 420 × 2 = 840?

Divide the product back by one of the factors: 840 ÷ 2 = 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 × 2?

There is only one: the multiplier 2 has a single digit, so 420 × 2 = 840 is written straight under the line, with no addition step.

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