Răspuns :
Răspuns:
a) 7+23-9
30-9=21
b) (22+8)+48
30+48=78
c) 4x7+ (9-7)
28+2=30
Răspuns:
a) 7+23-9=30+9=39
b)(22+8)+6×8=30+6×8=30+48=78
c)4×8+(9-7)=4×8+7=32+7=39
Răspuns:
a) 7+23-9
30-9=21
b) (22+8)+48
30+48=78
c) 4x7+ (9-7)
28+2=30
Răspuns:
a) 7+23-9=30+9=39
b)(22+8)+6×8=30+6×8=30+48=78
c)4×8+(9-7)=4×8+7=32+7=39