Răspuns :
Răspuns:
923-738+×=328+313
185+x=641
x=641-185
x=456
________
739+257-×=832-303
996-x=529
x=996-529
x=467
________
349+579-×=900-122
928-x=778
x=928-778
x=150
Răspuns:
a)923-738+x=328+313
185+x=641
x=641-185
×=456
b)739+257-×=832-303
996-x=529
x=996-529
x=467
c)338+579-×=900-122
917-x=778
x=917-778
×=139