Convert the following into Hindu Arabic Numeral.

$XLI$

Convert the following into Hindu Arabic Numeral.

Solve and write the result in Roman numerals.

$32+67$

Solve and write the result in Roman numerals.

$216-174$

Solve and write the result in Roman numerals.

$12\times 7$

Solve and write the result in Roman numerals.

$3645÷45$

Write if the following is meaningless or not.

$VVII$

Write if the following is meaningless or not.

$XLI$

Write if the following is meaningless or not.

$LIV$