①1.25×3.2
②9÷〔(38.02+1.98)×0.3〕
③9.4×10.1
④0.85×9.8
⑤17÷(3.84+2.96)-0.2
⑥37.2×0.35+6.28×3.5
30.8÷14=
197.6÷0.52=
2÷18≈(保留两位小数)
①2.5×1.67×0.4
②2.1÷0.35+0.45
③9.65×4.9+9.65×6.1-9.65
④20.4÷8.5×(6.5-5)