Question

Solve: \( 0.003 \times 0.0004 \) = ?

• A. 0.0012
• B. 0.00012
• C. 0.0000012
• D. 0.000012

Hint:

When multiplying decimals, count the total number of decimal places and adjust the final answer accordingly.

Answer 1

The Correct Option is C

Given: \[ 0.003 \times 0.0004 \] Step 1: Convert to scientific notation: \[ (3 \times 10^{-3}) \times (4 \times 10^{-4}) \] Step 2: Multiply the numbers: \[ (3 \times 4) \times (10^{-3} \times 10^{-4}) \] \[ 12 \times 10^{-7} \] Step 3: Convert back to decimal form: \[ 0.0000012 \]
Thus, the correct answer is 0.0000012.