решите все это плиз
30-6 =
60-1 =
60-5 =
50-5 =
70-1 =
70-4 =
60-5 =
80-3 =
40-8 =
40-3 =
60-2 =
80-7 =
30-6 =
80-3 =
90-8 =
70-5 =
90-8 =
30-5 =
50-2 =
20-4 =
60-8 =
20-3 =