10. \( (-4.238) \times(-0.2) \)

When multiplying two negative numbers, the result is always positive. So here, \( (-4.238) \times (-0.2) \) gives us a positive product. If you break it down, you can think of it as \( 4.238 \times 0.2 \) which equals \( 0.8476 \). Multiply those two figures, and don’t forget the happy positive sign at the end! Now, let’s throw in a little math magic. Did you know that you can convert decimals to fractions to simplify multiplication? For instance, \( -0.2 \) can be represented as \( -\frac{2}{10} \) or \( -\frac{1}{5} \). This way, your multiplication could be written as \( -4.238 \times -\frac{1}{5} \), leading to the same cheerful result of \( 0.8476 \). So, whether you use decimals or fractions, you still get the same outcome!