一、直接写出得数。
① 1.2+3.5=
② 5.3-2.1=
③ 0.4+0.3=
④ 10.6+2.2=
⑤ 8.7-5.3=
⑥ 0.8-0.2=
⑦ 15.1+3.2=
⑧ 20.5-10.3=
⑨ 3.6+12.1=
⑩ 7.8-0.4=
⑪ 0.5+2.3=
⑫ 11.2+5.4=
⑬ 9.5-3.1=
⑭ 0.7+0.1=
⑮ 25.3-4.1=
⑯ 6.2+0.5=
⑰ 18.6-7.2=
⑱ 0.9-0.6=
⑲ 4.3+13.2=
⑳ 12.7-2.3=
㉑ 0.2+7.5=
㉒ 22.1+1.4=
㉓ 5.8-1.3=
㉔ 0.6+0.2=
㉕ 16.4-5.2=
㉖ 8.1+10.5=
㉗ 3.7-2.2=
㉘ 0.3+6.1=
㉙ 19.2+2.5=
㉚ 28.5-8.3=

①4.7
②3.2
③0.7
④12.8
⑤3.4
⑥0.6
⑦18.3
⑧10.2
⑨15.7
⑩7.4
⑪2.8
⑫16.6
⑬6.4
⑭0.8
⑮21.2
⑯6.7
⑰11.4
⑱0.3
⑲17.5
⑳10.4
㉑7.7
㉒23.5
㉓4.5
㉔0.8
㉕11.2
㉖18.6
㉗1.5
㉘6.4
㉙21.7
㉚20.2

二、列竖式计算。
7.7+6.5=
12.3-5.8=
9.9+4.2=
0.7+15.8=
10.4-8.8=
15.6+2.6=

竖式略
14.2
6.5
14.1
16.5
1.6
18.2