decimal system
Refers to the base-10 numeral system. Common in mathematical and computing contexts.
Computers use the binary system internally, but humans are accustomed to the decimal system.
Also means decimal system, but 十進制 emphasizes the system or institution, while 十進法 focuses on the method or notation.
Compound of 十 (ten), 進 (advance, base), and 制 (system). A straightforward kanji-based term for the decimal system.