3.5.1 A Decimal Is a Base-Ten Fraction
Core ideaSplit 1 into ten equal parts and each part, 0.1, is 1/10 — decimals are really just fractions with denominators of 10, 100, and so on.
Module goal. Extend decimals from splitting into ten equal parts, understand that a decimal is really a base-ten fraction, and master place value, reading and writing, comparing, and converting across places.