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简介:
0.12+20.96-1.96=19.12 5.95+15.64-9.64=11.95
3.66+12.65-1.65=14.66 5.09+7.76-6.76=6.09
20.46+9.11-0.46=29.11 6.44+19.33-6.33=19.44
1.62+5.91-0.62=6.91 16.06+8.86-1.06=23.86
3.01+6.7-1.7=8.01 9.78+8.53-4.53=13.78
10.76+9.27-4.27=15.76 19.83+9.47-1.83=27.47
7.41+19.68-1.68=25.41 7.74+0.77-6.74=1.77