27÷7×49
=27×1/7×49
=27×7
=189
27÷7×49简便计算?解:原式=27×(49÷7)=27×7=189
27X(1/7)X49=27X7=189
27÷7×49=27×1/7×49=27×(1/7×49)=27×7=189
27➗7x49=27x(49➗7)=(30-3)×7=210-21=189