Răspuns :
50×10=500
3×10=30
100×50=5000
5000-30=4970
4970-500=4470
raspuns:4470
3×10=30
100×50=5000
5000-30=4970
4970-500=4470
raspuns:4470
a+(50x10)=100x50-3x10
a+500=5000-30
a+500=4970
a=4970-500
a=4470
Nr.este 4470
a+500=5000-30
a+500=4970
a=4970-500
a=4470
Nr.este 4470