638 multiplied by 21 is 13398

Explanation: Multiplication is repeated addition. So, 638 × 21 means adding 638, 21 times:

Word Problem Style

If you have 21 boxes and each box contains 638 apples, then the total number of apples is 13398.

Quick Facts

• 638 is called the multiplicand.
• 21 is called the multiplier.
• The result, 13398, is called the product.

Multiplication Table for 638

Explore More Multiplications

• 638 × 22
• 638 × 23
• 638 × 24
• 638 × 25
• 638 × 26
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• 640 × 21
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• 643 × 21