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简介:
8.8-1.72=7.08 8.76+17.32-3.32=22.76
7.22-2.24=4.98 12.86+2.21-4.86=10.21
5.99+5.52=11.51 6.81+11.39-5.39=12.81
1.57+7.96=9.53 8.45+7.42-4.45=11.42
9.37-2.66=6.71 2.56+17.85-0.85=19.56
5.93-3.8=2.13 17.13+5.68-13.13=9.68
5.89-2.87=3.02 16.08+5.92-3.08=18.92
4.47+2.03=6.5 9.99+20.79-0.79=29.99
7.33-3.93=3.4 2.7+20.92-4.92=18.7
4.9-1.87=3.03 5.59+8.68-2.59=11.68
9.09+7.64=16.73 3.81+6.88-5.88=4.81