Răspuns:
COROANAAAAAAAAAAA⚠️⚠️⚠️⚠️
1. 117:9=13
702:26=27
638:58=11
1050:10=105
2516:37=68
352:88=4
945:35=27
96:8=12
2. 75×19=1425 1425:5=285 A
624:2=312 624:3=208 F
( nu este posibil) nr consecutive 1,2,3 F
1:3=☆
2:3=☆
3:3=1
3. 351:a = 27 351:27= 13
(a+7):6-552:23=25 (a+7):6-552=25×23
=575
(a+7):6=575+552
=1127
a+7=1127×6
= 6762
a= 6762-7
a=6755