решите удобным способом 45*58+34*45+8*45-134000:(67*78-68*67)

1 способ:
45*58+34*45+8*45-134000:(67*78-68*67)=2610+1530+360-134000:(5226-4556)=4500-134000:670=4500-200=4300

2 способ:
45*58+34*45+8*45-134000:(67*78-68*67)=45*(58+34+8)-134000:(67(78-68))=45*100-134000:(67*10)=4500-134000:670=4500-200=4300