分數(shù)乘除法簡便運算100題(有答案)

1、分數(shù)乘除法簡便運算10084(1)(0 + 萬)X3 X96151 -6X5 -9+5 -9X5 -6XJZ43 - 4X5-273-4X2 -9JZ52 - 5XA137 - 5X6一136)(7)7 z 512 X6_12z 3 34 3)8 +8 X7 +83x7(9)37X 2(10) X 24z . 153(11)FX410+ 21(12)君X101-7io(13)hl33(14) - X 99 + -5548(15)(- + -)X7 X9(16)(17)3436X(18)5、 189)XT(19) 26彳 X 1(20) 32彳 x| o）丄*fi n10l,25 丿35 + -

2、U5(22)7丿37474- + 4- (23) 7 8 7 87121二 工 (24) 9999(25)3 -x5(26)5 5 4 5 4-+ 4-9 12 9 123x7（28）7(29)229(30) X (15X)(31) I x|X153(32) 25- X4(33) 54X (| - | )(34)衛(wèi)+Z+斗丄U2 1824 丿 72(35)8xTT0,375x2n_33? +咯4 +去19(36) 72525(37)山 8丿 48(38)(115313)(.126424 丿124711252+ X (39) 959 11(40)2654- + 578X- + 1574-343

3、(41)33-x8-x88 8(42) V 7912； 17912 y33- + -x44+24-0.6(43)3 53 (44) 8X5+ 5 X4101 X 2555(46) 8+ 8 X15(47)815 -r8626(48) 3 X 7 + 3X7 丄(49)( 90+ 88 ) X 8953 55(50) 7 X 8+8 X 7 A A 12(51) 15 X16 + 2745(52) 18X (9+6)77(53) -X7+-X533(54)X (24-1)（55）詔中弓(56)U(|+1)X13743(57) 3ixn+nx3i(58) 333IX3(59)5759y1s9 12

4、12 * 5(60)2 5 2 5ix3 4 5 6（61）G叫+17）述3 1|(62) (25+ ) -r I4 4 4(63)99X + 1616(64) 63x(打弓)(65)82342334丨(66)(21xy + yx21)x-(80)9(67) (99+ )十9(68)lx(70) 669.9一 5105-4- ( + 二)X-155311(71) - X58+- X41 + -8 8 85 4(69) (-+-) X306 54446X石-X153 - X53(81)(75) 20062008 X 肺(76)時處)諾匕14(79) 37 y(77)g X (| + 春)x 15

5、X11(82712X1522X4 - 7X9一10+x)z3(8937X3684(X17J/58(X1333X(86)L xioi-丄25254535)7X9+?X9(88) $5+99(89) 17X X374567(92) 2004X 殞1 1(93)73厲氣(94)1664-411X39+1X25+X1(95) 44413(96)1 X17121721(97)20002000 豈巴20011993x1994-1(98)1993+1992x19943 2 2(99)3-X25? + X6?2255(100) F* 三 w分數(shù)乘除法簡便運算100題答案84(1) (- + ) X3 X9 =

6、314z(5 - 9=1 -6X5 - 9+5 -9X5 - 63X45+2734 36(6)137X51313(7)X6 一12X 6 =1(8)3 +8 84x7(9)37 X(10)2524(11)15213X4 +1021(174O=8 - 9X8 一 98 - 98 - 9(15)| + | ) X7 X9=926251925(25-1),、77(12) io X101-10=7(17460=3 _ 5+99X3 一 5(16) 3j X 25=95z 、34(17)36X-(18)55、186-9)XT=1=(35+1)34X35(19)X(20) 32彳 x| o oX)/12-

7、5O+3二5 31 ( 1)(21)10、25 丿二丄7374 74- H4- o(23) 7 8 7 8=175545：-U:(25)529 * 12 91212T(27)3 48 x73 38 x7=0(28)373763x =37 6262(29)刃X(15Xx)時438 一15X2 - 3X5 - 8(32) 25# X4二 10343=)/5 - 68 - 9(34)+?+斗丄1824 丿 72=1092 f二 x + 0.375x2 3 (35) s iiii皆卜丄(37) 1 68 7 48 =58(38)5+19x4+21x19(36) 725255 313 )r 6 424；

8、丄24 =771125(39) 959 1 1 =211265 + + 578x3 + 157 + (40)343 =750(41) 88=64(42)(43)匸+ 2+2卜(7912 丿33-x8-s-x833 芒+ 0x44 + 24 一？ - 0.63 53=60(44) X- + -X =255(46)X15 =108 8(48) - X 4-1 X -=-37377(50) -X- + -X- -7887=744(45)101 X =16 252581(47)84-8=1 1515(49) ( 90+ ) X = 1 888988(51)厶1011516 279=3(53)2 2-X

9、7+-X5=833(55)(1 x-+i)777丄412 7 =T(57)3743_ x+-X3- =3?8 11 1188(59)575X14-959 12125=95(52) 18X (-+-) =2396(54) (1-丄)X (24- - ) =1-612515(56)(-+1) X 丄二353513(58) 333丄(25+訂寫+ 03孑(63)蕓X爲+ x辭藩肩54363x(- + -) =20 (64)9217(66) (21X- + -X21) X 丄=耳7744(65)9（67）厲+帀）丹=11-14 ,4 | 2、=（丁七+亍xn =7105 4(69) (- + T) X

10、30 =496 5（70）肚-加I冷(71) lx58+ix4i+L(72)ix7xi=ii4 5(73) X +5 623(74)駅】二4| X153 - X 53=60(75) 5(76)(77) gr1 . z3 10Xi 弋 x$)332(80)(82)+春)X15X11 =6746X=44 4545(79) 37 x(81) 2008X=20062o()72006200715X2222(83)9To139X17 +W4丄17 To(84)36X37 =需(85)111311 v1320X 二1333 一元(86)725X101- 25=28(87)4 5 3 5 5 x+x=7 97

11、 9 95 -9=1 -4X5 93 -4X5 -988(89) 17X - = 9 16 16(91) X3745=(1-) X3745=1X37 - X3745=36蘭45(92) 2004X672003(2003+1) X=2003X672003=67672003672003+ 1X672003(93)73 xl158=(72 + )X-1581161= 72X-+X-8158=9-15(94)1664-4120411=(164 + )X 2041=164X + X 412041-X39(95) 4+ -X254X13 +IX25+X (1325 + 2)X404=3042(96)1 X (2-一3XlU12 z 11X (1 12172117211721-2) + 15 丄三 124122115X1121715丄12z 、 2000(97)2000-? 20002001幾2000x2001 + 2000=2000 4=2000200120012000x2002200120021993x1994-1(98) 1993+1992x1994(1992+1)x1994-1-1993+1992x19941992x1994+1993-1993+1992x1