Anúncios
1
+8-10=??
-18
-2
+2
-10
2
-7-5=??
-12
-13
+12
-5
3
-228-480=??
-699
+408
-252
-708
4
-99+40=??
-59
+50
-40
+59
5
-4000+2998=???
+1002
-399
-1002
-500
6
+177+11=??
+11
-188
+55
+188
7
+30x+10=
+300
-300
