Răspuns :
69+10=79
18+10=28
34+10=44
27+10=37
58+10=68
7x10=70
70x7=700
8x10=80
99x10=990
700-107=593
18+10=28
34+10=44
27+10=37
58+10=68
7x10=70
70x7=700
8x10=80
99x10=990
700-107=593
1. a) 69 + 10 = 79
18 + 10 = 28
34 + 10 = 44
27 + 10 = 37
58 + 10 = 68
b) 7 x 10 = 70
70 x 10 = 700
8 x 10 = 80
99 x 10 = 990
2. 7 x 100 = 700
7 + 100 = 107
700 - 107 = 593
18 + 10 = 28
34 + 10 = 44
27 + 10 = 37
58 + 10 = 68
b) 7 x 10 = 70
70 x 10 = 700
8 x 10 = 80
99 x 10 = 990
2. 7 x 100 = 700
7 + 100 = 107
700 - 107 = 593