Solve: Place the Decimal Point in 0.05 × 0.8 = 004

To solve for the correct placement of the decimal point in the product of $0.05 \times 0.8$, follow these steps:

• Step 1: Convert the multiplication to a format without decimal points by treating the numbers as whole numbers. Multiply $5$ by $8$ to get $40$.
• Step 2: Count the total number of decimal places in the two factors. $0.05$ has 2 decimal places, and $0.8$ has 1 decimal place, summing it up to a total of 3 decimal places.
• Step 3: Position the decimal point in $40$ to achieve 3 decimal places, making it $0.040$.

Thus, the product of $0.05$ and $0.8$ with the decimal point correctly placed is $0.040$.