文档介绍：简便计算分类练习题第一种(300+6)x12              25x(4+8)125x(35+8)(12+24+80)×5032×(25+125)25×(24+16)4×(25×65+25×28)(13+24)x8第二种84x101504x2578x10225x204 704×2588×125102×76101×87 第三种99x6499x16638x99999x9998×19958×9899x2798x34第四种99X13+1325+199X2532X16+14X32178×99+17879×42+79+79×5784×36+64×8475×99+2×7575×27+19×2531×870+13×31078X4+78X3+78X3第五种88X12572X12575×2412×25 125X32X875×2425X32X12550×(34×4)×3138×25×4(13×125)×(3×8)25×32×125第六种3600÷25÷48100÷4÷753000÷125÷81250÷25÷57300÷25÷43900÷(39×25)420÷(5×7)800÷(20×8)第七种1200-624-762100-728-772273-73-27847-527-2735001-247-1021-2322356-(1356-721)1235-(1780-1665)3065-738-10652357-183-317-3572365-1086-214第八种 278+463+22+37732+580+268425+14+186158+262+138   1034+780320+102375+219+381+2252214+638+286(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+99999第九种214-(86+14)787-(87-29)365-(65+118)455-(155+230)  第十种576-285+85825-657+57690-177+77755-287+87 第十一种 871-299157-99363-199968-5991883-398   497-299899+3443999+4982370+1995157+99第十二种178X101-17883X102-83X217X23-23X783×102-83×2178×101-17835X127-35X16-11X35123×18-123×3+85×123容易出错类型(共五种类型)  600-60÷15                  20X4÷20X4736-35X20                 25X4÷25X498-18X5+25                 56X8÷56X8280-80÷4                   12X6÷12X6175-75÷25                25X8÷25X880-20X2+60                 36X9÷36X9 36-36÷6-6                  25X8÷(25X8)100+45-100+45             15X97+3