问题
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用简便方法计算.1.25×4×2.5×0.88.08×1.252.5×(40--0.4)99×0.453.7×4.3+3.7×1.2+3.7×4.5.
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计算下面各题,能用简便方法的就用简便方法计算.(1)15.52-1.6×5-5.7 (2)9.83×1.5+6.17×1.5(3)19.8-0.6×0.6-0
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用简便方法计算下面各题.43.6+9.8+6.4;7.3×0.25×8;2.31×1.5+1.5×7.69.
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能简算的要用简便方法计算①3.28×0.46+6.72×0.46②9.73×2.8-4.73×2.8③1.35×6.2+5.79÷0.3④27.9+3.6×2.5÷0.48⑤0
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用简便方法计算,要求写出简算的主要过程.(34-23)×12÷0.138×[89÷(56+34)]5.58-38+5.42-58716×40-516÷140.
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用简便方法计算5-94÷458-354.9×6.4+14×0.36-6.4×3.5.