Respuesta :
Answer:
30 cupcakes
If you do 9 + 21 it gives you 30.
Easier way to do it:
Transfer 1 cupcakes from 21 to make 20 and put the one cupcakes with 9 to make 10.
10 + 20 = 30
Answer:
30 cupcakes
If you do 9 + 21 it gives you 30.
Easier way to do it:
Transfer 1 cupcakes from 21 to make 20 and put the one cupcakes with 9 to make 10.
10 + 20 = 30