分数四则混合运算计算题专题训练题

1、分数的四则混合运算计算（能用简便的要简算）:554518211316+3x58-4x(9三-3 )(2- -6)x5-H51932111333146-17x(4+3)】12-4+10-H 5-宁【（4-2 )x5】224265375+1557x8+8十6丄 317112_51321(4+8 )】-49十5+9x11(6+43) x1269299丄 513213-26-399x1002十8+4x532 丄510751434x5+4-221x20十6445x4431333丄(84)-88十(8- -4)73(118) x881348x1 112+16)1234121213x7+7x13+13755

2、2(8-16)x(9+3)235+2x5+108 1 _613十7+7x13直接写得数65.3-=10=7617.1418x =610153911 : - -81024怎样简便就怎样计算：5726x4(8+3)7580,125直接写得数3x16=4525-x73 7能简算的要简算7248X（石+2）宁32323831239x -4匸271X1亠1X1391-75匸10 =-871 _0 x+128 =559x 7+9x 115）132523+25x671-（11x1）2x【7宁（4+ 丄）】53 21085 4COCXICOCXI寸Z+8X(z+col)og卜卜og_K K6寸寸寸co寸寸寸c

3、og:(1) 9寸寸(1E)co寸L卜8co寸MX44) +COI(Q)X寸 8X8coco寸CXI寸寸m544(8巨+37)(4(右x右)x(13x18)6x1+13-418x4+16+2X=5X1348X12+16)151625124543X440,125X37X +1998Xxx320X2 十【X】XX32375632 1 21215(3+5) + (3-12)(3+17)4558919+畐+9+畐)X (1 而)i16X111X18iX1919【（】宁1X + X4+X 25%(3212 Xr51【76+-8)r1 2 ,5【13-13)+ + + X25X8(44-x4-( - +-

4、)683/ 132、 “269299992J-2+)x12x-+6431326310051551000*32*X1 - 6-1 - 24- 5X5- 345111010122021174345x137131-95911(2-)x816573-)x881311 848X(丄+ )12 164c243+ x53521、/3712341212+ X +X _ + _X +525101377131371510 + -124833.6 0.684.6空237(23)11 32(13155.16 5.16 -6615 92 4344(0.747：)(1-寸11131253-(-)1055321231、1+

5、 -x()十23465(211172-)十3222015119 27 (-)45322r/ 123、11(xX )1 十5234627 12()20 355石8.6 32(233533；51(6；)123(278)|曽f1327510350(鳥(35)14)1492)1211181659(18)5154)21203(21(513)581 3)911 1(751258)6014)598470十14-26X18+X +-X-X +246X +34560X(2 3 4 5+45)4562(13)-X(2+-334131(15)X(1+ )(4-3)(16) ( +5523(14)-X + X3)十8

6、21(18)X1-(21-105X1 1 1丄+丄X10+6-121 214-Q-+13X)542131(11)(14-7+4X)X851632925(12)+ ) -( X31)-6253(19)X-+ + X-)十-7一(20)(9十一8X十111596X5+3-( 3)X881348X(丄+)788611812161r9、/32一111 ,3.3十X1+ -)+61743124105-r( - -)x-342552510追X3+ X邑+ -5 1551(17)X + X + %8(7- )x(5+2)81698r161/ 13、.17+ X -(-+ )十13713