①2+1=
②1+1=
③3+1=
④3-1=
⑤2+2=
⑥1+3=
⑦4-1=
⑧3+2=
⑨3-3=
⑩4+1=
⑪1+0=
⑫3-0=
⑬0+2=
⑭2-1=
⑮4-2=
⑯4-0=
174-4=
183-2=
191-1=
202+3=
215-2=
221+2=
232-2=
242+0=
251+2=
263-0=
274-3=
280+5=
291+3=
303+0=
312-2=
324+1=
①2+1=
②1+1=
③3+1=
④3-1=
⑤2+2=
⑥1+3=
⑦4-1=
⑧3+2=
⑨3-3=
⑩4+1=
⑪1+0=
⑫3-0=
⑬0+2=
⑭2-1=
⑮4-2=
⑯4-0=
174-4=
183-2=
191-1=
202+3=
215-2=
221+2=
232-2=
242+0=
251+2=
263-0=
274-3=
280+5=
291+3=
303+0=
312-2=
324+1=