Please Explain each questions. All you have to do is read the question carefully and use the right methods

1) Multiply a 3-digit number by a 2-digit number using the instructional algorithm. Show the addition of adding 3498 and 234 in Roman numerals. Convert to Hindu-Arabic: MCMXCVIII 4) Convert a 7-digit number of your choice from Base-5 to Base-10. (Remember a Base-5 number can only use the digits 0-4). 5) Convert to Hindu-Arabic: . 18) Find the god (3500,550) using set notation. 19) Find the Icm (20, 75) using set notation. 20) Reflect on this semester: What lesson has been the most fun? The least? Why? What advice would you give a student before entering into this course? 21)What manipulatives might you use in your lesson at the end of the semester?