Question

8+[4-(3+5)]:
10-[6+(2+7)]
15-[2-(6-10)]
15-[-(8+4]
12-[7-(2-10]
(-6)+[5+(2-12)
(_7)-[3-(4-9)]
​

Answer 1

a) 8-4 = 4
b) 10-15 = -5
c) 15-6 = 9
d) 15+12 = 27
e) 12-15 = -3
f) -6-5 = -11
g) -7-8 = -15

coronita plis q me ha costado ;)