=分数乘除法简便运算100题有答案ok

1、分数乘除法简便运算100题（有答案）(1) (8 + 247 )X 3 x 9386151 2 6 x( 7 - 3)(4)(5)235x -+ x942734(6)6713 X 5 -13(7)1233433(8)二+ -x-+ -x-88787(9)37 x 35(10) 25 x 24153( 21 x4 +103x -214(12)7_10x 101-710888833(13)9X 99X 9(14)X 99 +553(27)8 -(15) ( 7 + 9)x 7 X 9(16) 3彳 X 25(17)3436 x 3555(18) ( 6- 9) x185(19) 263 x2(20

2、) 325丄1 1(21) 102 5(22)3747(23) 78787121(24) 99995(26) 59_54_5_129123433x -x-8787(28) 633762(29)(30)29(31)(32)25411(33)54 X(35)11(37)4811(41)(34)121824720.375211(36)11(38)1211(40)265192521251957812132424157123(39)55511133888(42)(43)33 5 3 4424 5 0.635355(46)+-X 1588(47)8151 14(44) X + X(45)101X5525(

3、48)1 X6 +2 X 6(49)(90 + )X丄37378889(50) 5 X 3 +5 X 57887(52) 18X( 4 +5 )96(51) 8 X A + A * 101516279(53) - X 7+2 X 533(54) ( 1 丄)X( 24 4 )6125(55)1(56) 151)X 13(57)3387 + X11 11338(58) 33313(59)121252(60)-(61)(3212(62)(25 +(63)18252 + Z X ? +16251616(64)63 (921 3)(65)(i1)1634(21X 3 + 4 X 21)(67) (99

4、+23(66)772(68)(70)(72)(74)(76)(78)(80)4(510 58(71)(73)(69)(75)315 + 石)X 15X 114446 X 4445(77)(79)(81)37x 58+X 153143920062008X 2006X 41 +X 5310V )41579139(82)-x 22x悝(83）和x万+10 x417(84)36 x 37(85)111113x131333(86) x 101-2525(87)(88)(89)17x(90)2006 - 20072008(91)44 x3745(92)2004 x672003(93)73 x15(94)

5、166 - 41201 x 39 +(95) 4x 25 +4413423117(96)1 x( 2 - -) + 15-17341221(97)2000 - 2000 200020011993 19941(98) 1993 1992 1994(99)3 3 x 25 2 + X 62555225 5(100)( 9 +7) + ( + )797 9分数乘除法简便运算100题答案:84(1)(6+ 27)x 3X 9 =31(3)12、 19x( 7)=空631894 274367(7)石X 6 -12X6 =136(9)37 X=335352 x 3 + - x 3 = 11336(2)(3

6、 -8)X=015(4)55515-X+X -=6996967626(6)XX 一 =135_13513(8)3 34333+ -X 二+ X 二=8 87874_6(10)25X24=625 X (25-1)=519251531033 1(12)77(11)2iX4+X -2144 =7X -10101-=701088 8 833(14)-X9X999=0(14) 5X 99 +=605484(16)(7 +9)X 7 X：9=92(16)35 X25=95345518(17)36 X35(18)(5-9)V =134=(35+1)X-3534=34352125(19)263X 5(20)3

7、25 X651125(25+二)X35(30+5：)X 6=51=2731113555(21)1025=_ 1(22)7=7177374 77121(23) 787 8_8(24)9999 =57(25)3205 =121(26)5545 =1256291291253(27)8x 7 =0(28) 6337 =37 3762 62(29)1.6,2. 6_7+ =37376-29(3。)29 X (15 X 31 )=3031|7237/|2 - 9-8一15X2 一 3X5 - 003152(36)3-5 一 6-8 - 927209110.3752色111921193 =0(36)2525

8、=19 -75 3丄(38) 33 - (43)3 848 =585 3 13112 6 4 2424 =771125(39)95911 =5(40)113c 388(41)88=64(42)434265578 -157343=7505551 1179127 912=53-4424550.63=60101X =16兰25251 1(44) X + 丄 X =2(45)5555(46)+ X15 =10(47)8旦+8=1丄8 81515(48)1 X6 + 2 x6 =6(49)(90 + 丄)X丄:=1丄37377888988(50) 5 X 3 + 5 X 557887=7(63)18 、

9、/9 ,7 、/9 ,_99X+X+2516251616 :=8543(64)63 (9 21 7)=20(65)5 113163)4区=。34121(66)(21 X+X 21)X -=774414/ 4210,7(-+ -)X=(689=1X(71)(70)65105244511XX -(73)(72)5742 =：144 / 51、 5(74)-)5828】=4(67)9(99 + )10-9 =11 -9(69)(-+ -)65X 30 =49888452 .3 _ 4X +56553-X 58+ - X 41+ 13X153 - X53=60(75)5(51

10、)8 x5 + 5亠10 1(52)18X(4+5)=231516279 =39 6(53)-X 7+2 X 5 =8(54)(11-)X4(24 -)=1兰33612515(55)(5 X4+4 )亠412(56) 2-(2+丄)1X 丄=377 77=753 513(57)33 X 7 + 幺-X 33 =3358) 3331X 3=1000811 11883(59)575952(60)-525912125=93456 =1(61)(32X 1+ 17)-53(62) (25+ 空)亠1+11412 =60444=1034417723113103(76)(5 +4)宁3 +10 =20(7

11、7)82 ):59322314 c31(78)(+ )x 15x 11 =67(79)37=315113939(80)46 x4444 =44(81)2008x2006 =200620064545200/200741575)-913949(82)7 x22=1222(83 x1017+询x17 = 10(84)2836 x =3737/ 、11(85)乜11 x 匹=20133333(86)X 101- =282525(87)-7979(88)(89) 17x 16 = 916(90)2006 -2007=2006 x20082008200720082007=2007 X 2008-1 x20

12、07=2008- 20082007=2006 20062007=(2007-1)2008200744(91) x 37451=(1- )x 37 451=1 x 37 - x 3745=36 45G7(92) 2004x 2003(2003+1)x67=2003x旦20032003+ 1 x旦2003200367=67(93)73 x 115816、1(72 +)X _158116 172 X+X -815 8=91151(94) 166- 4120=(164 +41 ) X 丄2041=164 X 1 +41兰X 1204112020012000 200213_263X 39 +X 25 +X(95) 4441333 CL326=X13 +X 25+X44413=3 x(13 + 25 + 2)=44=3 X 404=30423117(96)1X(2-)+ 15*17341221= 2111“ 121X 1+15X17121217=2111“ 1X(:1+ 15 )171212=21(97)2000 - 2000 200020012000 2001 20002001=2000 200120021993 19941(98) 1993 1992 1994(19921) 1994 1 1993 1992 19941992 199