Răspuns :
1)1078-40=1038 !______!-----!
40
2)1038:2=519(b) =1078
3)519+40=559(a) !______!
R:559(a)
519(b)
40
2)1038:2=519(b) =1078
3)519+40=559(a) !______!
R:559(a)
519(b)