=分?jǐn)?shù)乘除法簡便運(yùn)算100題ok

1、分?jǐn)?shù)乘除法簡便運(yùn)算100題(1) (8 + 247 )x 3 x 9(2) (8(3)7 -2(4)(5)+ 27(6)(7)123348+8 x 7(9) 37 x335(10) 25x 24153)21 x4 +103x-21477( 17)x 101-17o(13)(14)747 (23) 7878 x 99 + 3(15)(16)435x 25(17) 3634x 3555(18)( 6 - 9)x185(19) 26彳 xx-2(20) 325(22)丄 丄丄（21） 10 2 572(24) 99994 _59 1255(26) 5 9123(27)3 -3433x-x_8787(

2、28) 6337(29)(30)29X (15X 31(31)(32)25411(33) 54 X(35)11(37)(41)11(34)121824720.3751119(36)1148(38)1211(40)265255781221251913242415712(43)(44) 6.8 X 1 + - X 3.255(45)101 X 上25(46)- + 5 X 158 8(47)815)(90 + )X 8889(48) 1 X - + - X -(493737(50) 5 X 3 + 5 X 57887(52) 18X( 4 +總)96(51) X 5+-5 + 1015162793

3、一14丄)X( 24 -)12-(55)(72 1(-+- )x352(57)3387 冷 X 33+11(58)3331 X 3(59)7125122(60)-3(61) (32 x1-+ 17)45123(62) (25+ -4(63)18 X + X +25162516916563 (54 -)217516(67)9(99+ )- 91014(68)匸寧1510(69)5 4(-+ - )X 306 55 x 6(70) 65(71)X 58 + - X 41 + 18(72) - X5(73)4(74)45(5858(75)-X153 - 0.65X 534(76)(47+ 10(77

4、)12310七 X 6 )_234446 X 4445(81)2008 X200620074157(82)-X 22X 12(839139帀X幣+帀X417(84) 36X 善11(85)畐111313X矛(86)X 101-2525(87)53519(88) 9 X4+5 X4(89) 17X 16(90)2006 -20072008(91)44 X 37(92) 2004X45672003(93)73 X 1158(94) 166 - 41(95) 44/ 23、1(96)1X(2 -)+ 15-173412仃21(97)2000 - 2000-200020011993 1994 1(98

5、) 19931992 1994(99)3 3 X 25 25 5(100) ( 9+7) + ( +)797 9 + 37.9 X 62555分?jǐn)?shù)乘除法簡便運(yùn)算100題答案:(1) (8 + 27 )x 3 x 9 =313(2) (8 -)x39 -)1 - I=2 一 3-7z(X1 6(5)2359 X 4 +271136676 26(6)x-=13513513(7)7172 x 6 -5126 =1334333(8)匚+ -x-+ _='丿887874(9)37 x35 = 3§3535(10) 25x 24§(25-1)15i 31033 1(11)x +

6、x-2142144 78 888(14)x999x 9=048(16)(7 +9 ) x 7 x 9=9234(17)36 x 3534=(35+1)x 3534=343521(19)263 x51(25+53)x5=51=273丄1 1(21)102 5=1737 47(23) 78 78 =87(25)3 20 5=12156277( 10 x "I-% =7033(14)X 99 +=6055(16) 35 X25=955518(18) ( 6 - 9)T =125(2°)325 x6125(3性)x 53 343 3(27)8 - 3 x7 - 8 x7 =

7、6;53554(22)7=7177121(24)9999 =5554512(26)91291253737(28)63=376262(29)4 6 + 6 = 737376/、22930(30)29 x(15x31)=亍(32)528 28X3X = 215985(33)54 X(9-6 )=33(32) 254 X 4= 10311751(34)12 18 2472 =109(36)110.37521113 =0(36)1925212519=195 3 丄3344 3 5 848 =585 3 13112 6 4 2424 =771125(39)95911 =5(40)113c 388(41)

8、88=64(42)434265578 -157343=7505551 1179127 912=5(43)5240.63=60101 X =16蘭25251 1(44) 6.8 X - + X 3.2=2(45)55(46)5+ 3 X 15 =10(47)888(48)1X 6+ 2 x 6 =6(4937377(50)5 x3 + 5 X 57887 :7色十8=1丄1515/ 1、11(90 +)X, , =1 -888988(51)8 X5 + 5 +10152) 18X( 4+5) =231516279 =:396(53)2 X 7+2X 5 =8(54) ( 131038 X2 -(

9、5 XG)=蔥-)X( 24 - - ) =1336125(55)(5 X4 +4 )寧412(56) 1 十(-+1 )X 丄=37777 =:753513374331(57)3_ X+ X3：=3-(58) 333-X 3=1000141581111883(59)5 75952(60)-52 59 12125 =:93456 =1(61)(321X 丄 + 17)+ 5_(62)(25+ -)十1丄11 十412=60444=1034189799 9(63)X + 一X +2516251616=854351131663 (-_)=20(65)-( )(64)9217823423=03(66

10、)(21X 3+ 4X 21：)X 1 =_ 21(67)91(99 + )- 9 =11 -774410914 _427 ( 4 + 2 )X卩=7(69)545 + 4 )X 30 =49(68) 1553111065569亠9 =_ 1(71)X(70) 65105244511(73)XX(72) 5742 =14111X 58 +X 41 +888 =12.55 丄 2. 3_4417723(76) (5 + 4 ).3十石=20(77)565534/ 51、.53(74)- + -)5 X153 - °6 X 53=605828】=4(75)23(78)(15 + 11)X

11、 15X 11 =67(79)(80)46 X4444 =44454541575(82)X722X =1222(83143137=3393920062006(81) 2008 X, =2006 皂0620072007913949帀X 17 +帀X刁=103/37(86)7X 101-=282525(88)535159X -4+ 9 X 4 '_9(84) 36X= 2811111320(85)13_ X13333345 355(87)79 799(89) 17X -I = 9 -16 16(90)2006 -2007=2006 X2008200820077 2008X 2007=200

12、7 X 2008-1 x2007=2008- 20082007=2006 20062007=(2007-1)2008200744(91) X 37451=(1- )X 37 451=1 X 37 - X 3745=36 45G"7(92) 2004X 2003(2003+1)x67=67=2003X旦2003672003+ 1 X旦200320031 1(93)73 X 1158=(72 + 眾 X -158” 1161=72 X+X丄8158門2=9 -151(94) 166- 4120“41、1=(164 +)X .2041 1411=164 X+X 412041=4 -201

13、X 39 +3 X 25 +26 X ?(95) 44413=33326X 13 +X 25 +X 44413=3X( 13 + 25 + 2)4=3 X 40 4=3017214 231(96)1 X( 2 - -) + 15-173412?! x 111 + 15 丄 X211717121221宀11,1X( 1 + 15 )17121221(97)2000 - 2000-200020012000 2001 2000200120012000 2002=2000 -=2000 -=200120021993 19941(98) 1993 1992 1994(19921) 1994 11993 1992 19941992 199419931993 1992 1994322(99)3 X 25