Long Multiplication: 21 × 5
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What is 21 × 5?
Answer
21 × 5 =
105
One partial product: 21 × 5 = 105. 5 × 21 gives the same 105.
21 × 5 in a column
| 2 | 1 | ||
| × | 5 | ||
| 1 | 0 | 5 |
In the column: product 105.
Step by step: 21 × 5
- Step 1Multiply the multiplicand by the last digit of the multiplier, 5: 21 × 5 = 105.
- 1 × 5 = 5. Write 5.
- 2 × 5 = 10. Write 0 and carry 1.
- No digits are left, so the carried 1 is written in front: the partial product is 105.
- Product105
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- Multiplying Fractions Calculator - Multiply fractions, mixed numbers and whole numbers step by step
- Factors of a Number - List all Factors and Factor Pairs of a Number
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
- Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers
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