①0.25×1.56×4
②0.74×99+0.74
③7.5÷1.5×1.3
④2.74÷0.125÷8
⑤12.5×7.2
⑥27.3÷[(7.4-6.8)×1.3]
①12.5×3.2×0.25
②12.6÷(3.4-1.6)
③0.84×55÷0.7
④10-5×2.44×0.2
⑤1.8+1.8÷9-0.85
⑥11.1×63+111×3.7
①2021÷1.25÷
②5.74×12.5%+1.26÷8+
③(-0.6)÷(-)
④0.8÷[(+)×]
①210÷35+12×109
②2.5×1.25×16
③()×12
④ [()]