Răspuns:
2.
a×26=37778
a=37778÷26
a=1453
b:407=825
b=825×407
b=335775
335064:c=69
c=335064:69
c=4856
87×d=108663
d=108663:87
d=1249
3.nuj
4.a÷9=872
a=872×9
a=7848
7848-8=7840
7840÷32=245
