计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/11 17:46:50
计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.

计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19
计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19

计算1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19
1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19
=(1.1+9.9)+5.5+(3.3+7.7)+(11.11+19.19)+15.15+(13.13+17.17)
=11+5.5+11+30.3+15.15+30.3
=5.5*5+15.15*5
=(5.5+15.15)*5
=20.65*5
=103.25