Question

9+9=
10+10=
6+6=
71+71=
0+72=
5-9=
79-61=

Answer 1

Resposta:

9+9= 18

10+10=20

6+6=12

71+71=142

0+72=72

5-9=-4

79-61=18

Answer 2

Explicação:

99=18

10+10=20

6+6=12

71+71=142

0+72=72

5-9=-4

79-61=18