Răspuns :
345×527=181815
3456×3=10368
654+345=999
999×2=1998
456+870=1326
1326×3=3978
3456×3=10368
654+345=999
999×2=1998
456+870=1326
1326×3=3978
345x527=181815
3456x3=10368
654+345=999,999x2=1998
456+870=1336,1336x3=4008
3456x3=10368
654+345=999,999x2=1998
456+870=1336,1336x3=4008