Răspuns:
ex1
a) 245:5=49. b)23500:100=235. c)648:12=54
3648:4=912. 230000:1000=230. 7452:23=324
ex2
648:8=81. 3484:9=387,11. 321:15=21,4
proba:81×8=648. proba:387,11×9=3484 21,4×5=321
ex 3
7×a=2268
a=2268:7
a=324
b:23=340
b=340×23
b=7820
c)2304:c-25=71
c=71×2304+25
c=163609
ex 4
a)48:4=13
c)12:48:2=2
sper că v-am ajutat!
