LEVEL 1
4X2
8
4X4
16
5X5
25
6X14
84
4X15
60
5X2
10
5X4
20
6X6
36
4X12
48
6X15
90
6X2
12
6X3
18
6X4
24
5X14
70
(12X3)+(11X2)
58
4X3
12
4X6
24
6X7
42
6X14
84
(4 × 6) + (3 × 5)
39
5X3
15
5X6
30
6X8
48
6X13
78
(15 X 3) + (12 X 3)
45+36=81