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0.21+3.89+9.11=13.21 11.81+(9.33+2.19)=23.330.12+(6.12+1.88)=8.12 8.75+3.52+0.25=12.529.61+4.84+2.16=16.61 0.15+8.94+0.85=9.945.62+10.99+7.01=23.62 16.52+(0.42+2.48)=19.429.82+3.85+10.15=23.82 5.51+4.15+8.49=18.151.34+(4.48+4.66)=10.48 8.36+1.85+3.15=13.360.74+(2.04+2.26)=5.04 0.66+2....
8.08×1.25简便计算?即(8+0.08)x1.25=8x1.25+0.08x1.25=10+0.1=10.1