Răspuns :
A × 7 = 2961
A = 2961 ÷ 7
A = 423
b × 7 = 1645
b = 1645 ÷ 7
b = 235
c × 7 = 5614
c = 5614 ÷ 7
c = 802
a ÷ 7 = 197
a = 7 × 197
a = 1379
b ÷ 7 = 2036
b = 7 × 2036
b = 14252
c ÷ 7 = 359
c = 7 × 359
c = 2513
coroana???
A×7=2961
A=2961:7
A=423
b×7=1645
b=1645:7
b=235
c×7=5614
c=5614:7
c=802
a:7=197
a=197×7
a=1379
b:7=2036
b=2036×7
b=14252
c:7=359
c=359×7
c=2513