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分数乘除法简运算100题(有答案)

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分数乘除法简便运算100题(有答案)

84336

(1)( + )×3 ×9 (2)( - )×

927

(3) 16 ×(7 - 23 )

(5)23539 ×4 +27 × 4 (7) 7 ×6 - 5

1212 × 6 (9) 37×

335 (11)1521 ×34 + 103321 ×4 - 4 (13) 888 ×9 —9 ×9 8815

(4) 56 ×551

9 + 9 × 6

6) 67613 ×5 - 13 × 2

5

(8)38 +34338 ×7 +8 ×7

10) 6

25

× 24

(12)77

10 ×101- 10

(14) 33

5 × 99 + 5

484

(15)( + )×7 ×9 (16)3 ×25

795

345518

(17) 36× (18) ( - )×

35(19)2623 × 15 1(21) 101215 37(23)784778 35(25) 5206 (27)334338 - 8 ×7 - 8 ×7

1626(29) 3÷7+3÷7 (31) 58 ×23 ×815 695

(20)3225 ×5

6

(22) 35575

712 (24)99919

5 (26)9129512

(28)

633762 (30)229 ×(15×2931 )

(32)253

4

×4

85

(33)×( - ) (34)12182472

96

1175135680.37523113 (35) 8115192141925(36) (36)725

531(37) 6848 (38) 1153131122424

71125(39) 95911 (40)

265434578157343

33888 (42) (41) 8555111(42) 79127912

(43)

(43)

5353344240.6353

114(44)6.8×5+5×3.2 (45) 101×25

558(46) 8+8×15 (47)815÷8

1626(48) 3×7+3×7 5355(50)7×8+8×7

85510(51)15×16+27÷9 22(53)3×7+3×5 44(55)(7×7+7)÷7 33743(57) 8×11+11×38 5(59) 971251295 15(61)(32×4+17)÷12 11(49)( 90+88)×

45 (52)18×(9+6)

114 ()(6-12)×(24-5)1211 (56)5÷[(3+5)×13]

(58)

33313×3 2 (60)

35256 311 (62)(25+4)÷4+4

1799(63) 25×16+25×16+16

351131663()[()]9217 (65) 823423 ()

3419(66)(21×7+7×21)×4 (67)(99+10)÷9

144210(68)15÷[(5+3)×11] (69)(6+5)×30

5699111(70)6×5-10÷5 (71) 8×58+8×41+8

44514523(72)5×7×4-2 (73) 5×6+5÷5

45153

(74) 5÷[(8-2)÷8] (75) ×153 – 0.6×53

5

417711310

(76)( + )÷ + (77) ×[ ÷( × )]

3108259

(78) ( + )×15×11 (79)1511

23

371439

442006

(80) 46×45 (81) 2008×

2007

415791394(82) × × (83) × + ×

7221210171017

111113

(84)36× (85) - ×

37131333

9

774535(86) 25×101-25 (87) 7979

53519

(88) × + × ()17×

949416

4467(91)45×37 (92)2004×2003

11(93)7315×8

1(94) 16620÷41

13263(95)4×39 + 4×25 + 4×13

234117(96)117×(23 - 4)+ 1512 ÷ 21

2000(97)2000÷20002001

199319941(98)199319921994

322(99)35×255 + 37.9×65

2255(100)(97+79)÷(7+9)

分数乘除法简便运算100题答案

84336

(1)( + )×3 ×9 =31 (2)( - )× =0

9278815

191255515

(3) ×(7 - )=18 (4) × + × =

6369969

23531167626

(5) × + × =36 (6) × - × =

9427413513513

333433

(7) ×6 - × 6 =1 (8) + × + × = 4

121288787

75

(9) 37×

3

35

66

= 335 (10) × 24

25

=

× (25-1) 6

15310331(12)21 ×4 + 21 ×4 - 4 =7 (14) × — × =0 (16)( 487 + 9 )×7 ×9=92 (17) 36×3435 =(35+1)×34

35

34= 3435

25

19 =525

(12)77

10 ×101- 10

=70

(14) 35 × 99 + 3

5

=60 (16)34

5

×25=95 18) ( 556 - 9 )×18

5

=1

2125

(19)26 × (20)32 ×

3556

51215

=(25+3)× =(30+5)×

51=53 1111(21) 1025 =7 3(23)77478878=7 3(25) 520516=122 (27)33438 - 8 ×7 - 8 ×37

=0 16267(29) 3÷7+3÷7=6 (32) 528 ×23 ×815 =9 6

=27

 (22) 355175 =77 7121 (24)

9999=5 5512 (26)912912= 5 3737(28)

6362 =3762 30)229 ×(15×29

3031

) =31 (32)253

4

×4= 103

11751(33)×( - 5

6

)=3 (34)12182472=109

3(37) 85110.3752681133 5(38) =0 (36)7192542152519 =19 7

(38) 5638148 =58 (38) 1153131126424247(39) 9112555911 = 11 (40)

265435783441573

=750

3(44) 88388 = (42) 5551(45) 7912719112

(46) =5

(43)

=7

5353344240.6353

=60

1144(45)6.8×5+5×3.2 =2 (45) 101×25 =1625

55(46) 8+8×15 =10 16266(48) 3×7+3×7 = 7 53555(50)7×8+8×7=7

855101(51)15×16+27÷9=3 22(53)3×7+3×5 =8 4412(55)(7×7+7)÷7=7 3743(57) 38×11+11×38= 338 575(59) 91251295= 9 81 (47)815÷8=115

111(49)( 90+88)× = 188

45 (52)18×(9+6)=23

11414 ()(6-12)×(24-5)=1151211 (56)5÷[(3+5)×13]=3

(58)

33313×3 =1000 25(60)

3256=1

131151(62)(32×4+17)÷12=60 (62)(25+4)÷4+4=1034

17999(63) 25×16+25×16+16=8

()

63(92137) =20 34121(67)(21×7+7×21)×4 =41442107(69)15÷[(5+3)×11] = 10 56991(70)6×5-10÷5 =2 44511(73)5×7×4-2=14 4515(74) 5÷[(8-2)÷8】= 4 (76)(45 +1234 )÷73 +710 =20 (78) (2 +3

1511

)×15×11 =67 65) [58(1213)34]1623=0 91 (67)(99+10)÷9 =119

(69)(6+5)×30 =49

111 (71) 8×58+8×41+8=12.5

45234(73) 5×6+5÷5 =3

3

5

×153 – 0.6×53=60

(77)18 ×[12 ÷(35 ×10

39

)] =32

31 (79)371439=339

( (75) 444420062006

(80) 46×45=4445 (81) 2008× =20062007

2007

157913949(82) × × =22 (83) × + × =

72212(84)36×

9

2837

= 37 77(86) 25×101-25 =28 (88) 59 × 34 +59 × 14 =59

44(91)45×37 1=(1-45)×37 1= 1×37 - 45×37 8= 35 1017101710

(85)1113 -1113 ×132033

=33

4535587)

7979=9 ()17× 9

916

= 916

67(92)2004×2003

67 = (2003+1)×2003

6767 = 2003×2003 + 1×2003

67 =672003

( 11(93)7315×8

116= (72 + 15)×8

1161= 72 ×8 + 15×8

2= 915

1(94) 16620÷41

411= (1 + 20)×41

1411= 1×41 + 20×41

1= 420

13263(95)4×39 + 4×25 + 4×13

33326= 4×13 + 4×25 + 4×13

3= 4×(13 + 25 + 2)

3= 4×40

= 30

4231(96)117×(23 - 4)+ 15122111121 = 17×112 + 1512×17

21111= 17×(112 + 1512)

= 21

2000(97)2000÷20002001

200020012000= 2000÷2001

2001= 2000 ÷ 20002002

2001= 2002

17 21 ÷

199319941(98)199319921994

(19921)19941= 199319921994

199219941993= 199319921994

= 1

322(99)35×255 + 37.9×65

3222= 35×255 + (255+12.5)×65

32222= 35×255 + 255×65 + 12.5×65

= (3.6+6.4)×25.4 + 12.5×8×0.8

= 2 + 80

= 334

2255(100)(97+79)÷(7+9)

556565= (7+9)÷(7+9)

1111= [65×(7+9)]÷[5×(7+9)]

= 65÷5

= 13

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