简便计算(分类).doc

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1、简便计算分类练习题班级姓名第一种(300+6)x1225x(4+8)125x(35+8)(12+24+80)x5032x(25+125)25x(24+16)4x(25x65+25x28)(13+24)x8第二种84x101504x2578x10225x204704x2588x125102x76101x87第三种99x6499x16638x99999x9998x19958x9899x2798x34第四种99X13+1325+199X2532X16+14X32178x99+17875x27+19x2531x870+13x31078X4+78X3+78X3第五种88X1

2、2572X12575x2412x25125X32X875x2425X32X12550x(34x4)x3138x25x4(13x125)x(3x8)25x32x125第六种3600-25-48100-4-753000-125-81250-25-57300-25-43900-(39x25)420-(5x7)800-(20x8)第七种1200-624-762100-728-772273-73-27847-527-2735001-247-1021-2322356-(1356-721)1235-(1780-1665)3065-738-10652357-183-317-357

3、2365-1086-214第八种278+463+22+37732+580+268425+14+186158+262+1381034+780320+102375+219+381+2252214+638+286(181+2564)+2719378+44+114+242+222276+228+353+219第九种214-(86+14)787-(87-29)365-(65+118)455-(155+230)第十种576-285+85第十一种871-299497-299825-657+57690-177+77755-287+87157-99363-199968-599188

4、3-398899+3443999+4982370+1995157+99第十二种178X101-17883X102-83X217X23-23X783x102-83x2178x101-17835X127-35X16-11X35123x18-123x3+85x123