645 multiplied by 21 is 13545

Explanation: Multiplication is repeated addition. So, 645 × 21 means adding 645, 21 times:

Word Problem Style

If you have 21 boxes and each box contains 645 apples, then the total number of apples is 13545.

Quick Facts

• 645 is called the multiplicand.
• 21 is called the multiplier.
• The result, 13545, is called the product.

Multiplication Table for 645

Explore More Multiplications

• 645 × 22
• 645 × 23
• 645 × 24
• 645 × 25
• 645 × 26
• 646 × 21
• 647 × 21
• 648 × 21
• 649 × 21
• 650 × 21