6. \( \begin{array}{r}511 \\ \times \quad 98 \\ \hline\end{array} \)

To multiply 511 by 98, you can break it down using the distributive property. First, recognize that 98 can be rewritten as 100 - 2. So the multiplication becomes: \( 511 \times 98 = 511 \times (100 - 2) = 51100 - 1022 = 50078\). And there you have it! The product of 511 and 98 is 50078! Now, here's a quick tip: When multiplying numbers close to 100, consider using this strategy of breaking them down. It simplifies calculations and reduces errors, making arithmetic a breeze!