67.3-(17.6+15.38)
65%x+25%x=2.7 x-20%x= (1+25%)x=16.4
25×10%=
①5.4×÷
②0.8×35+64÷+80%
③(-+)÷
④6.75-1+3.25-
⑤33×(-)×26
⑥[-(-)]÷
①1375+450÷18×25 ②41×25%+×60-0.25
③ ④17.8-
⑤ ⑥