Question

care este numărul necunoscut din fiecare relație. a) 195+a+502=906.........591-202-b=27..........b)704-c=115+176..........c).d-785=528-407

Answer 1

c)c=704-(115+176)=413. d)d-785= 121. d=121+785. d=906

Answer 2

a) 195+a+502=906
195+a=906-502
195+a=404
a=404-195
a=209

591-202-b=27
389-b=27
b=389-27
b=362

b) 704-c=115+176
704-c=291
c=704-291
c=413

c)d-785=528-407
d-785=121
d=785+121
d=906