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mareste suma si deferenta numerelor 392 si 189 de 10,100 si 1000 ori

Răspuns :

392-189=203. 203•10=2030. 203•100=20300. 203•1000=203000 ------------ 392+189=581. 581•10=5810. 581•100=58100. 581•1000=581000
392+189=581
581*10=5810
581*100=58100
581*1000=581000
392-189=203
203*10=2030
203*100=20300
203*1000=203000