10 + 10 + 10 + 10 =
10 + 10 =
10 + 10 + 10 + 10 +10 =
10 + 10 + 10 + 10 + 10 + 10 + 10 +10 +10 =
10 + 10 + 10 + 10 +10 + 10 + 10 =
10 + 10 + 10 + 10 +10 +10 + 10 + 10 + 10 + 10 =
10 + 10 + 10 + 10 +10 +10 + 10 + 10 =
10 + 10 + 10 =
10 + 10 + 10 + 10 +10 +10 =
30
90
20
40
70
100
60
80
50