3.17+7.48-2.78+0.53-3.48-1.02+5.3

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/15 15:20:00
3.17+7.48-2.78+0.53-3.48-1.02+5.33.17+7.48-2.78+0.53-3.48-1.02+5.33.17+7.48-2.78+0.53-3.48-1.02+5.33

3.17+7.48-2.78+0.53-3.48-1.02+5.3
3.17+7.48-2.78+0.53-3.48-1.02+5.3

3.17+7.48-2.78+0.53-3.48-1.02+5.3
3.17+7.48-2.78+0.53-3.48-1.02+5.3
=(3.17+0.53)+(7.48-3.48)-(2.78+1.02)+5.3
=3.7+4-3.8+5.3
=(3.7+5.3)+(4-3.8)
=9+0.2
=9.2

得九点二啊,有什么不懂的吗,还是需要一部一部的计算啊