Răspuns :
Răspuns:
a. 4, 6, 7, 9, 10.
b. 21, 35, 42, 63.
c. 35, 49, 56, 70, 77.
a) 28:7=4
42:7=6
49:7=7
63:7=9
70:7=10
b)28-7=21
42-7=35
49-7=42
63-7=56
70-7=63
c) 28+7=35
42+7=49
49+7=56
63+7=70
70+7=77
Răspuns:
a. 4, 6, 7, 9, 10.
b. 21, 35, 42, 63.
c. 35, 49, 56, 70, 77.
a) 28:7=4
42:7=6
49:7=7
63:7=9
70:7=10
b)28-7=21
42-7=35
49-7=42
63-7=56
70-7=63
c) 28+7=35
42+7=49
49+7=56
63+7=70
70+7=77