(0.08 × 0.007) is equal to

Question

(0.08 × 0.007) is equal to

1. A. 0.056
2. B. 0.0056
3. C. 0.00056 (Correct answer)
4. D. 0.56

Correct Answer

Option C — 0.00056

Detailed Solution & Explanation

The correct answer is 0.00056.

Key Points

• Multiply the digits, ignoring the decimal points: 8 x 7 = 56.
• Count the decimal places in the operands: 0.08 has 2 and 0.007 has 3, giving a total of 5.
• The product must therefore carry 5 decimal places: 0.00056.

Additional Information

• A quick order-of-magnitude check: 0.08 is about 8 x 10⁻², and 0.007 is 7 x 10⁻³, so the product is 56 x 10⁻⁵ = 5.6 x 10⁻⁴.
• Miscounting decimal places is the single most common error in this question type — always total the places before writing the answer.