Finding the unknown number will help us complete the math assignment.
She smiled when she saw it was a collect call from an unknown number.
The scientist confirmed there were an unknown number of variables affecting the experiment.
An unknown number of books had been donated to the library this month.
It has cost some unknown number of taxpayers their children.
Seeing a missed call from an unknown number always makes me curious.
Ver una llamada perdida de un número desconocido siempre me pone curioso.
Determining the unknown number might involve trial and error in some cases.
Determinar el número desconocido puede implicar prueba y error en algunos casos.
She received text messages from an unknown number, igniting her curiosity.
Recibió mensajes de texto de un número desconocido, despertando su curiosidad.
I felt wary when my phone rang from an unknown number.
Me sentí inquieto cuando mi teléfono sonó con un número desconocido.
She found a receipt with an unknown number written in the corner.
Encontró un recibo con un número desconocido escrito en la esquina.
In statistics, the unknown number can represent a missing data point.
En estadísticas, el número desconocido puede representar un dato faltante.
I'll be darned, it really was your brother calling from that unknown number.
Anda ya, de verdad era tu hermano llamando desde ese número desconocido.
In this puzzle, the unknown number is crucial for finding the solution.
En este acertijo, el número desconocido es crucial para encontrar la solución.