a) 37+37/(−32)−12=37+37×(−23)−12=37+(−27)−12=17−12=−514
b)212−(−12)2+34=52−14+34=52+12=3
c) (38−1.25)/(34−0.25)2=(38−54)/(34−14)2=(−78)/(12)2=−72
d) 125/1415+(113−212)/56=75×1514+(43−52)/56=32+(−76/56=110