Tính
a) 0,75−56+112;
b) 37+415+−821+(−0,4);
c) 0,625+−27+38+−57+123;
d) (−3)⋅−3821⋅−76⋅−319;
e) 1118:229⋅85;
g) −45⋅58:−2512.
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