150÷3+250
8×(537-412)
(367+233)÷6
①38×(135÷9)
②126÷7×47
③(288+441)÷9
①(3618÷18-145)×20
②6÷ - ÷6
③(21+ )× +
④ ×[ ÷( - )]
⑤3.5×98+35×0.2