简便计算5.63*4.2+56.3*0.68-5.63 2.13*27.5+0.213*825-21.3 脱式计算0.38*448+6.67*38-3.8*11.5 55.63*2.8+4.8*5.63+43.7*0.76
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![简便计算5.63*4.2+56.3*0.68-5.63 2.13*27.5+0.213*825-21.3 脱式计算0.38*448+6.67*38-3.8*11.5 55.63*2.8+4.8*5.63+43.7*0.76](/uploads/image/z/31015-55-5.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%975.63%2A4.2%2B56.3%2A0.68-5.63+2.13%2A27.5%2B0.213%2A825-21.3+%E8%84%B1%E5%BC%8F%E8%AE%A1%E7%AE%970.38%2A448%2B6.67%2A38-3.8%2A11.5+55.63%2A2.8%2B4.8%2A5.63%2B43.7%2A0.76)
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简便计算5.63*4.2+56.3*0.68-5.63 2.13*27.5+0.213*825-21.3 脱式计算0.38*448+6.67*38-3.8*11.5 55.63*2.8+4.8*5.63+43.7*0.76
简便计算5.63*4.2+56.3*0.68-5.63 2.13*27.5+0.213*825-21.3 脱式计算
0.38*448+6.67*38-3.8*11.5 55.63*2.8+4.8*5.63+43.7*0.76
简便计算5.63*4.2+56.3*0.68-5.63 2.13*27.5+0.213*825-21.3 脱式计算0.38*448+6.67*38-3.8*11.5 55.63*2.8+4.8*5.63+43.7*0.76
原式=5.63*4.2+5.63*6.8-5.63=5.63*(4.2+6.8-1)=5.63*10=56.3
原式=21.3*2.75+21.3*8.25-21.3=21.3*(2.75+8.25-1)=21.3*10=213