Question

calcule;
+10+2
+5+18
+2+21
+23+21
+12+34
+12-8
+15-6

Answer 1

Resposta:

+12

+23

+23

+44

+46

+4

+9

Explicação passo-a-passo:

+10+2=+12

+5+18=+23

+2+21=+23

+23+21=+44

+12+34=+46

+12-8=+4

+15-6=+9