Question

descopera numerele ascunse 7×?<50<?×8

Answer 1

7x7= 49, deci este mai mic decat 50, iar
50< 8x8= 64, asa ca
7x7<50< 8x8

Answer 2

?-este acelasi nr care se regaseste atat in stanga ,cat si in dreapta.Il aflam luand fiecare relatie in parte: 7x?<50 => ?<50:7=7 r 1 => ?=7 .(verificam: 7x7<50 <=> 49 <50. Adevarat.Acum verificam daca ?=7 se potriveste si in cealalta relatie: 50<?x8 <=> 50<7x8 <=> 50<56 .Adevarat ,deci ?=7.