התחבר/י באמצעות
- או -
פתרו את התרגיל
\[\begin{aligned} 1,000-?=309 \end{aligned}\]
\[\begin{aligned} ?-1,000=438 \end{aligned}\]
\[\begin{aligned} 1,000-?=117 \end{aligned}\]
\[\begin{aligned} 1,000-?=296 \end{aligned}\]
\[\begin{aligned} 10,000-?=2,645 \end{aligned}\]