Respuesta :

20-13=7, 21-12=9, 7*9=63; 20*12=240; ANSWER: 63+240=303

Answer:

Step-by-step explanation:

65520

I was taught to always multiply all the numbers and you’re kind of hard answer now with me I don’t believe that is the correct answer but that’s what my teacher told me so .

or the answer could be 87