Question

descoperiti regula de formare si gasiti toate numerele naturale ce pot urma in fiecare sir
a}666 666,555 555,444 444;
c}9 999 991,9 999 919, 9 999 199;
b}666 666,55 555,4 444;
d}999 999 991, 99 999 991, 9 999 991.
Ajutatima va rog

Answer 1

a]

666 666, 555 555, 444 444, 333 333, 222 222, 111 111

b]

666 666, 55 555, 4 444, 333, 22, 1

c]

9 999 991, 9 999 919, 9 999 199, 9 991 999, 9 919 999, 9 199 999,
1 999 999

d]

999 999 991, 99 999 991, 9 999 991, 999 991, 99 991, 9 991, 991, 91, 1