试题 试卷
题型:单选题 题类:常考题 难易度:容易
(两个知识点)3234 10
①3.5+2.1=
3.5-2.1=
②0.9+0.1=
0.9-0.1=
③0.51+0.42=
0.51-0.42=
4.6+7.5=
8.3-4.4=
17.6+23.4=
27.54-20.32=
45.62+15.48=
试题篮