Answer :
Final answer:
The answer explains the concepts of expanded form, Roman numerals, and standard form in relation to numbers.
Explanation:
Expanded form: Refers to writing a number as the sum of the values of its digits, for example, 456 in expanded form is 400 + 50 + 6.
Roman numerals: Represent numbers using letters like I for 1, V for 5, X for 10, etc. For instance, 23 December in Roman numerals is XXIII-XII.
Standard form: Numbers written using commas to separate the place values, such as 1,234,567,890.
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