which model shows the correct expression and solution to 0.3 x 0.4

Answer 1

To solve the multiplication \(0.3 \times 0.4\), you can express it in a way that makes the calculation clearer. Here’s the breakdown:

1. Start by converting the decimals to fractions: \[ 0.3 = \frac{3}{10} \] \[ 0.4 = \frac{4}{10} \]

2. Multiply the fractions: \[ 0.3 \times 0.4 = \frac{3}{10} \times \frac{4}{10} = \frac{3 \times 4}{10 \times 10} = \frac{12}{100} \]

3. Convert the result back to a decimal: \[ \frac{12}{100} = 0.12 \]

Thus, the correct expression and solution to \(0.3 \times 0.4\) is: \[ 0.3 \times 0.4 = 0.12 \]