7th Grade · The Number System
Terminating Decimal
7.NS.A.2d
Definition
A decimal that ends — it has a finite number of digits after the decimal point. It results when a division has a remainder of zero.
Examples
- 1/4 = 0.25 (stops).
- 3/8 = 0.375 (stops).
Key rule
A fraction terminates only when the denominator's prime factors are 2 and/or 5.
Memory hook
It stops — no repeating.