Final answer:
The answer to 0.4 times 3 is a simple multiplication problem, resulting in the exact answer of 1.2. No complex algebraic rearrangements are needed, and no rounding is required.
Step-by-step explanation:
The answer to 0.4 times 3 is straightforward multiplication. To calculate it, you multiply the decimal number 0.4 by the integer 3. The process doesn't involve complex algebraic rearrangements or division; it simply requires you to perform the multiplication directly.
Here's the step-by-step calculation:
- Write down the numbers: 0.4 and 3.
- Multiply the decimal by the integer: 0.4 × 3.
- Calculate the product: 0.4 × 3 = 1.2.
Therefore, 0.4 times 3 equals 1.2. This is a simple arithmetic operation, and no rounding off is necessary as the answer is exact.