分?jǐn)?shù)乘除法簡便運(yùn)算100題

1、分?jǐn)?shù)乘除法曾便建算 100 ®5551,、23 53(4)X- +-X(5)X 1X -699694 2746762X-X 135135(6),、4 4 、336，、1,2(1) (9 + 27 )X3X9（2）（8 -8)x15(3) 6 X (7 -3）61531033(10) 25 x 24(11) 21X4 +21X4 -4(而X101-710753 3433/、3(7)x 6 -12x 6128+8x -7+ -8x-7(9) 37 x 石8888/ 3.3, 、48(13)9X9 -一9X9(14) - X 99 + 55(15) ( 7 +9 ) X7 X9(16)4匚

2、X2534(17) 36X35(18)518一 ) x一9)521( 263 x 5(21)25(2。)325 X®(22)(23)(25)32055376(28)6362528(31)-X8-X3行3 7 4 77 8 7 85545(26) 5 -9 12 9 121+6+2+637373254 x433433(2幅 - 8 X7 - 8 X7(30) t2 X(15x|9 )85(33) 54 X(葭6)117513568519211218240.375 2-3 -419(34)72 (35) 811113(36)725255 3工(37)6 848(38)1153131711

3、2512642424(39)95911434265 578 157 3 83 8555111(40)343 (41)88(42)79127912(43)53533一一44 240.635311(44) 8X 5 + 5 x(45) 101X 25(46) 8 +58 X 15(47)8 15+8(48)5510(49)(90 + 88 ) 乂89(50)8+8 X(51)15 X 16 + 27 + 9(52)18X(9+6)(53)7+- X53(54)義(24-)5(55)4+4)7 7(56) 5(57 )3381111x 338(58)13331 x 33(59)1212(60)(61

4、)15(32 X 1 + 17)-123(62) (25+ - ) +4(64)m /563 (一(63)18 x八25+1625X -9- +-9-16165113(65)5 (2 3) 41234、十 X21)(66)7(67) (99 +9)-10-9(68)5、/ 699_ X _ -+(71)(70) 651054446 X45-42(-+ 2) X-1553111 X58+ 1 X41+ 1888(69)(- +- ) X 30654451二 x 二 x "(80)(72) 5742(73)4x5 + 二3(74)4 +(5 535 x 153 -X 53(81)5655

5、5828(75)2008X2006200741 、-7711310(76)(£ 十 ：）54- 3+而(77) 8 X2-5x )9 )14(79) 3739(78)3+ 1115 X 11(82) 4 X15 X(83()72212(91394一 X一 十一 X 一10171017936 X 37(85)1113111313x一33(86) X101 -2525(91)X 37(92) 2004X672003(93)73 -X-(94) 166- - 411582017212000(97)2000 +200020011993 1994 1(98) 1993 19921994(99)

6、32x 65(100)(92+72) + ( 5+勺)797 9分?jǐn)?shù)乘除法曾便逋算100題答案(1)(9 + 2 ) X3 X9 =31 9 2 73（2）（8 -615=0,、12 6 *(7 - 31918(4)5X9(5)X3 +互4 273_ 114 36(6)6137T-561361375(7)立 X6 - - X 6 =1(8)4 3X7 + 83x7 =36 37 * 35 = 3 356(10)元X 24=5251925(11)153一 x- +21410 3一 x-21 43_ 14 77(而(14)8X93(14) 5X (25-1 )X101- -7 =70103X 99

7、 + 5 =60(15) ( 4 + 8 )X7 X9=92 79(16)435 X25=95518x石=1(35+1)34X 35=343435(19)226- X3=5(21)(23)(25)(2哈10=27208=8=12-2(27)| .8x47Xf =0(29)(31)2X38x -=15(33)54 X56)=3(35)110.3756211(37)648=5811(39)911(30+12) 5(22)(24)(26)(28)(30)(32)(34)83=0(38)(40)(36)63229325411121112353762125X6=7-7=37衛(wèi) 6229X(15X31 )

8、X4= 1039 =51218192512303124132472 =10921192524=19 57=7157 43=750(43)(44)(46)(48)33=643-44 245=2(42)0.6(45)=60101X25=16255 + 81 X 3X15 =10(47)88十1518 =1 15(49(90 + )88。=1 8988(50)7=7(51)1516 279=3(52) 18X4+：) =23(53)2 X 7+2 X 5 =8(54) ( 1 工)X ( 24 4) =11461215(55)4 + 4)7 74 127=7(56) 1 - (2+1)(57)338

9、74、,x 十 x1111333-= 3- _1(58) 333x 3 =1000 3(59)12 12 5 =(60)6=1(61)(3212 =60(62)(25+ -444=1034(63)竺X2+Zx旦+2516251616 = 8(64)63 (9213) =205(65)5(1 -)-2 341623 =0(66)21(67)(99+ ) +9 =11 110(68) - ( 4 + 2) X 10= 15531110(69)5x6一旦+9=1(70) 651052(71)5 4、 一 一(5 + 4 ) X 30 =496 5X 58+ X 41 + 888 =(74)(76)(

10、78)(80)2152 =14(75)X 153X 53=602320(77)1 -(-2(510x )=9 )323)X 15X 11 =67 1146 X 絲=44444545(79)37(81)”=3巴393920062008SX =200620072006200741575(82) 7 x22= 22(83913949x- -k x =10 171017 10, 、92884) 36X = 2837371111(85) 13 1313x =332033(86) X101- =2825255351 5(88)9 X 4 +9 X 4 = 9(87)453 5_5797 9199(89)

11、17X = 9916(91)44X 374567(92) 2004X 2003=(1- ) X 3745(2003+1) X672003=1 X 37 - X3745=2003x旦2003+ 12003=36 451 (93)73 X15=67672003=(72 +=72 X18)151 +8816 x15=9 15(94) 166 - -4120=(164 +41 ) X 2041X +1 X 39 + 3 X 25 + 26 X (95) 44413= 3X13 + 3x25 + 3X 空444133=-X ( 13 + 25 + 2 )4=X 404=30(96)1X (2 2 - 1731217212117x 1 + 15 x121221171215也+12=2000 +2000 2001 2000200121 17=212000(97)2000 +2000200120012000 20023 X 252 + 2555X62 +X62=2000二 200120021993 1994 1(98) 1993 1992 1994(1992 1) 1994 11993 1992 19941992 1994 19931993 1992 1994 =1(99)3 3 X 252 + X 62555=3