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1．计算1.135+3.346+5.557+7.768+9.979=_____. 2.计算1.996+19.97+199.8=_____. 3.计算9.8+99.8+999.8+2023.8+20239.8=_____. 4.计算6.11+9.22+8.33+7.44+5.55+4.56+3.67+2.78+1.89=_____. 5.计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19=_____. 6.计算2.894.68+4.686.11+4.68=_____. 7.计算17.2023-17.2023+17.2023=_____. 8.计算1.250.322.5=_____. 9.计算754.7+15.925=_____. 10.计算28.2023+3.2023.7+573.40.05=_____. 11.计算172.46.2+20230.38. 12.计算3.17-2.74+4.7+5.29-0.26+6.3=_____. 13.计算(5.25+0.125+5.75)8=_____. 14.计算34.58.23-34.5+2.2023.5=_____. 15.计算6.250.16+2023.2023+5.26.25+0.20230=_____. 16.计算0.202335+0.035+30.035+0.20230.5=_____. 17.计算19.2023-199.81.9+20230.82=_____. 18.计算13.59.9+6.510.1=_____. 19.计算0.2023.250.564=_____. 20.计算11.843-2023.09=_____. | 
