①2×283=
②121×8=
③720×2=
④530+190=
⑤☆536+168=
⑥☆962-804=
5×8= 18÷2= 4÷4= 8÷1=
49÷7= 81÷9= 30÷6= 48÷8=
54﹣8= 36÷6= 4×6+5= 16÷4×2=
①54÷7=
②☆800-265=
③☆638+562=
④523-176+452=
①29÷7=
②36-8=
③42÷6=
④43÷7=