67.58-(17.58+4.32) 1.25×2.5×(4×0.8)
7.6×3.4+6.6×7.6 4.2÷[(5.92-4.52)×0.2]
14.4×0.8×1.25 2.3÷0.46-3.5
0.99÷0.1=
1÷0.5=
13.5÷2.5×0=
0.1-0.01=
8y-7y=
0.2×5÷0.2×5=
①
②
③
④
82.65÷5.7×5.4
7.5×10.1
9.2×5.5+0.45×92
6.46×3.5+3.5×4.54-3.5
163×1.8163 163×0.18163
2.7×12.7× (0.8+0.2) 7.3×6.464×0.73