256+301= 736+195= 287-36-64=
256+300+1= 736+200-5= 287-(36+64)=
①68+(234+132)
②625+67+75
③278-28-72
④125+75+28+72
⑤38+66+162+334
⑥418-156+82
98+99+100+101+102