52.8*0.45-0.45怎么简便算和16*2.61*0.025*1.25怎么简便算
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![52.8*0.45-0.45怎么简便算和16*2.61*0.025*1.25怎么简便算](/uploads/image/z/468702-54-2.jpg?t=52.8%2A0.45-0.45%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E7%AE%97%E5%92%8C16%2A2.61%2A0.025%2A1.25%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E7%AE%97)
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52.8*0.45-0.45怎么简便算和16*2.61*0.025*1.25怎么简便算
52.8*0.45-0.45怎么简便算和16*2.61*0.025*1.25怎么简便算
52.8*0.45-0.45怎么简便算和16*2.61*0.025*1.25怎么简便算
52.8 × 0.45 - 0.45 = 52.8 × 0.45 - 0.45 × 1 = (52.8 - 1)× 0.45 = 51.8 × 0.45 = 23.31 16 × 2.61 × 0.025 × 1.25 = 8 × 2 × 2.61 × 0.025 × 1.25 = (2 × 0.025)×(8 × 1.25) × 2.61 = 0.05 × 10 × 2.61 = 0.5 × 2.61 = 1.305