a, (-37)+14+26+37
=[(-37)+37]+(14+26)
=0+40
=40
b, (-24)+6+10+24
=[(-24)+24]+(10+6)
=0+16
=16
c, (-16)+(-209)+(-14)+209
=[(-209)+209]+[(-16)+(-14)]
=0+(-30)
=-30
d, 2575+37-2576-29
=(2575-2576)+(37-29)
=(-1)+8
=-7
e, 34+35+36+37-14-15-16-17
=(34-14)+(35-15)+(36-16)+(37-17)
=10+10+10+10
=10×4
=40