Question

cate numere de trei cifre au cifra zecilor 5? dar cifra sutelor 5?

Answer 1

150...151 ...152..153...154 ...155....156...157...158... .159 
250...............................................................................259
350................................................................................359
450................................................................................459
550................................................................................559
650................................................................................659
750................................................................................759
850.................................................................................859
950.................................................................................959

astea sunt cu 5 la zeci deci sunt  90 numere 

si la ordinul sutelor sunt :::::::::::
500.... 501 ...502... 503 ...504  ...505..506..507..508..509
510......511....512....513..............................................519
520.......521.................................................................529
530..............................................................................539
540..............................................................................549
550..............................................................................559
560..............................................................................569
570..............................................................................579
580..............................................................................589
590...........................................................................si 599

 de la 500 la 599 sunt 100 de numere cu numarul 5 la ordinul sutelor