Răspuns:
a) a × 58 = 3712
a = 3712 : 58
a = 64
b ) c : 285 = 650
c = 650 × 285
c = 185250
c ) 6710 : e = 68 rest 46
e = ( 6710 - 46 ) : 68
e = 6664 : 68
e = 98
67 × b = 6499
b = 6499 : 67
b = 97
8624 : d = 88
d= 8624 : 88
d = 98
f : 56 = 93 rest 52
f = 93 × 56 + 52
f = 5208 + 52
f = 5260