我会在○里填上“>”“<”或“=”。  

15-7 ○17-5                           34-7○33-8                       62+8○79-5 

8+19 ○18+9                         27+6○56-40                    25+30○35 +20   

1元○11角                             4元5角○54角                  3.50元○3元3角