Răspuns :
7+66:2=40(66:2=33+7+40)
90-82:2=49(82:2=41,90-41=49)
36+36:3=48
48+84:4=69
100-63:3=79
64+64:2=96
42-99:3=9
76+48:2=100
90-82:2=49(82:2=41,90-41=49)
36+36:3=48
48+84:4=69
100-63:3=79
64+64:2=96
42-99:3=9
76+48:2=100