"turning" - 0 õppematerjali
turning on one of these will make it do an addition; turning on the other will make it do a subtraction. You should construct the circuit as specified by this illustration:
Nagu näha, siis vastuse leidmine on päris raske, aga lendamine on hoopis imelihtne - tuleb vaid maa poole viskuda ja mööda kukkuda.
annaabi.ee 
