四年级数学上册简便运算练习题125×3225×46101×5699×261022-478-422987-(287+135)478-256-144672-36+6436+64-36+64487-287-139-61500-257-34-1432000-368-1321814-378-42289×99+89155+264+36+4425×(20+4)88×225+225×12698-291-9568-(68+178)561-19+58382+165+35-82155+256+45-98236+189+64759-126-25925×79×4569-256-44216+89+1157×125×81050÷15÷77200÷24÷30219×9937×9858×10176×10278×46+78×54169×123—23×16937×99+37129×101—129149×69—149+149×3256×51+56×48+56125×25×3224×25125×48514+189—214369—256+15656×25×4×12524×73+26×2416×98+32125×38+125×3025×324004×2525×16-25×1025×16×125(125+16)×879×99+79781×101-78179×16+79×78+79×625×101789×99800÷1251736+4032000÷12565+93×65+6×659999+999+99+9158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)