# (10 x 75) + (2 x 75)
7 865 - 249
# x10, :2
8 x 75
660 x 5
800 x 4
36 x 250
# x1000, :4
12 x 75
# -400, +4
# -250, +1
# x2, x10
# (10 x 75) - (2 x 75)
# dubbel, dubbel
180 x 20
1 698 - 396
