Respuesta :
10 less skittles red than orange
20 skittles double the number of red
the red skittles have 10 skittles the orange skittles have 20 so its additon
20
+
10
------
30
20 skittles double the number of red
the red skittles have 10 skittles the orange skittles have 20 so its additon
20
+
10
------
30