Question

ex 13 14 dau coroana va rog

Answer 1

13 . a)5n+245=845
5n=845-245
5n=600
n=600:5
b)
54:n+67x5=344
54:n+335=344
54:n=9
n=54:9
n=6
c)
n:3x8=616
n:24=616
n=616x24
n=14784
d)
894-n:4=833
n:4=894-833
n:4=61
n=61x4
n=244

14.cel mai mare nr de 4 cifre -> 9876
impatritul -> 226x4= 904
9876-904= 8972