①43+19×3
②60÷2-17
③782-136+135
④250-84÷4
⑤37×(21-13)
⑥(886-526)÷6
①(3618÷18-145)×20
②6÷ - ÷6
③(21+ )× +
④ ×[ ÷( - )]
⑤3.5×98+35×0.2