maf

+

1

88+92

180

2

180+56

236

3

236+102

338

-

1

338-236

102

2

236-180

56

3

180-88

92

divided

1

5 dibed by 2

3

2

15 dibed by 8

7

3

12 dibed 12

0

x

1

15 x 2

17

2

18 x 

18

3

15 x 0

15