文档介绍：运算定律与简便计算练****题运算定律与简便计算练****题用简便算法计算下面各题。  2214+638+286         (181+2564)+719         158+262+138 12×25            25×24138×25×4     (13×125)×(3×8)     (12+80)×50          704×25  25×32×125        32×(25+125)      88×125         102×76     58×98  178×101-178      84×36+64×84       75×99+75      83×102-83×2   98×199          178×99+178        79×42+79×58     7300÷25÷4         8100÷4÷75   16800÷100        30100÷2100          32000÷400         49700÷700    31×870+130×31                  378+527+73167+289+33427+58-2758+39+42+61123+86-23867+234+133+166287+135+123+165285+633+115+67427-89+73438+34+162367+278-267+123258+232-158+168258+143-158+157742+129+158+171136+57-3635+13+65+87239+233-139+67199+124+201+176368+139-168+261218+39+61218+138-38286-23-77218+523-23136-29-61336-45-55272-36-64318+52+48318+544-44372-23-7718+333-33772-56-44786-38-48418+143-43236-66-34686-29-61636-47-53886-43-57618+147-47172-65-35101×3539×42+39689-546-5482×99+82125×25×3228×10282+114+18+586144×90-85×14425×3299×3238×10132×99+32125×3225×46101×5699×261022-478-422987-(287+135)478-256-144672-36-642000-368-1321814-378-42289×99+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+1157×125×8318+155-55518+88+12118+123-23318+41+59576+(187+24)576+(187-76)843-(543-179)347+(153-129)947+(372-447)771-(89+71)576-(76+59)576-272-(89+72)756-375+(187+25)476+246+(153-146)546+976-(71+76)337-576-(176+72)136-198780-101418+198236-98686-197636-299336-299619+102171-102318+198518+103118+99四年级下册整数和小数的简便运算练****题128+175÷5154+720÷60-123100÷【225-(74+26)】(750-65×11)×70【200-(95+60)】×80(231-154)×(78-50)101×3539×42+39×58689-546-54125+98-12582×99+826400÷25÷4125×25×++×10282+114+18+586144×90-85×14425×3211000÷8÷12599×32(320-136)×8-+++×---++(10-)-(+)-+-(+)++×10132×99+3220×【262-(120-35)】(28+32)×(120÷5)四年级数学下册简便运算练****题125×3225×46101×5699×2610