Quick Answer

420 × 20

420 × 20 = 8400. To multiply 420 by 20, add 420 to itself 20 times, or use the standard multiplication algorithm. 420 × 20 = 8400.

8400

420 × 20 = 8400

How to Calculate 420 × 20

To multiply 420 by 20, add 420 to itself 20 times, or use the standard multiplication algorithm. 420 × 20 = 8400.

Expression420 × 20

Answer8400

420 × 20 = 8400

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