Quick Answer

3 × 21

3 × 21 = 63. To multiply 3 by 21, add 3 to itself 21 times, or use the standard multiplication algorithm. 3 × 21 = 63.

3 × 21 = 63

How to Calculate 3 × 21

To multiply 3 by 21, add 3 to itself 21 times, or use the standard multiplication algorithm. 3 × 21 = 63.

Expression3 × 21

Answer63

3 × 21 = 63

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