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问题描述:
3.17-2.74+4.7+5.29-0.26+6.3
3.17-2.74+4.7+5.29-0.26+6.3 =3.17-(2.74+0.26)+(4.7+6.3)+5.29 =3.17-3+11+5.29 =0.17+16.29 =16.46