600:10:2+125:5-270:9---Ca sa ne fie mai usor facem asa:
((600:10):2)+(125:5)-(270:9)=60:2+25-30=30+(-5)=25.
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300-123×4÷6÷1+88×4=570.
300-492÷6÷1+88×4;
300-82÷1+88×4;
300-82+88×4;
300-82+352;
218+352;
570.
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1200+456×12-780÷20×40÷1=5110.
1200+5472-39×40;
1200+5472-1560;
6672-1560;
5112.
