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四年级简便运算500道

四年级简便运算500道

的有关信息介绍如下:

四年级简便运算500道

(1).527+199

(2).735-198

(3).105×99

(4).865-198

(5).75×98

(6)68×99+68

(7)63×88+88×37

(8)58×99+58

(9)25×49+75×49

(10)575-78-22

(11)48×89+48

(12)367-199

(13)56×102

(14)75×48+75×52

(15)(20+4)×25

(16)99×11

(17)32×(200+3)

(18)68×39+68

(19)239×101

(20)38×25×4

(21)42×125×8

(22)(25×125)×8×4

(23)78×125×8×3

(24)(125×25)×4

(25)(125+25)×4

(26)127+352+73+4

(27)89+276+135+33

(28)5+204+335+96

(29)25+71+75+29 +88

(30)243+89+111+57

(31)399+(154+201)

(32)480+325+75

(33)78+53+47+2291+89+11

(34)36+18+64

(35)168+250+32

(36)85+41+15+59

(37)78+46+154

(38)130-46-34

(39)263-96-104

(40)970-132-68

(41)400-185-15

(42)472-126-124

(43)168-28-72

(44)437-137-63

(45)244+182+56

(46)951-395

(47)19+199+1999

(48)34+304+3004

(49)798+321

(50)325-156+675-144

(51)8+98+998+9998

(52)99999+9999+999+99+9+4

(53)44+37+56

(54)163+49+261

(55)74+(137+326)

(56)249+402

(57)189+35+211+165

(58)483-236-64

(59)582-157-182

(60)65×5×2

(61)15×23×4

(62)36×25

(63)25×125×32

(64)35×22

(65)5×(63×2)

(66)540÷45÷2

(67)540÷36

(68)216+305

(69)25×32

(70)47+236+64

(71)6×(15×9)

(72)402+359

(73)43+78+122+257

(74)25×(26×4)

(75)25×44

(76)354+(229+46)

(77)25×(4×12)

(78)25×(4+12)

(79)64×64+36×64

(80)99×99+99   49×99+49

(81)49×99+49

(82) a+b =b+a

88+56+12

178+350+22

56+208+144

(83) (a+b)+c=a+(b+c)

(23+56)+47

19×75×8

62×8×25

43×15×6

41×35×2

(84) a×(b+c) =a×b+a×c

136×406+406×64

702×123+877×702

246×32+34×492

(84).a×(b-c) =a×b-a×c

102×59-59×2

456×25-25×56

43×126-86×13

101×897-897

(85)a-b-c=a-(b+c)

458-45—155

2354-456-544

68547-457-123-420

(86)a-b+c=a+c-b

4235-4067+765

3569+526-1569

45682-7538+14318

(87)a÷b÷c=a÷(b×c)

4500÷4÷75

16800÷8÷25

248000÷8÷125

5200÷4÷65

(88)

4500×102÷90

3600÷80×2

125÷20×8

250÷75×30

(89)a-b=a-(b+c)+c

429-293

1587-689

8904-1297

87905-388

(90)a-b=a-(b-c)-c

2564-302

25478-9006

5024-502

1251-409

(91).a+b=a+(b+c)-c

254+489

(92)a+b=a+(b-c)+c

124+4005

1235+607

248+803

2005+45687

(93)

254+246+744+1054

5897+568-897+432

45627-258-742-1627

(94)

321×46-92×27-67×46

75×32×125

25×12

25×16

25×24

28×25

32×250

25×44

25×84

125×16

125×24

125×32

56×125

125×88

720×125

48×125

(95)13×99+13

(96)91×99+91

(97)43×99+43

(98)38×99+38

(99)184×99+184

(100)26×99+26

(101)55×101-55

(102)16×101-16

(103)57×101-57

(104)39×101-39

(105)123×101-123

(106)852×101-852

(107)17×21+83×21

(108)124×63+124×37

(109)62×74+38×74

(110)27×25+13×25

(111)33×33+67×33

(112)18×35+2×35

(113)116×57+43×116

(114)17×23-7×23

(115)124×63-24×63

(116)132×28-32×28

(117)34×54-24×54

(118)53×25-13×25

(119)381×32-32×81

(120)93×125-13×125

(121)24×99

(122)99×26

(123)98×34

(124)99×45

(125)99×32

(126)18×99

(127)12×101

(128)33×103

(129)101×54

(130)103×23

(131)62×101

(132)24×102

(133)527+199

(134)735-198

(135)105×99

(136)865-198

(137)75×98

(138)68×99+68

(139)63×88+88×37

(140)58×99+58

(141)25×49+75×49

(142)575-78-22

(143)48×89+48

(144)367-199

(145)56×102

(146)75×48+75×52

(147)2×125×8

(148)(25×125)×8×4

(149)78×125×8×3

(150)(125×25)×4

(151)(125+25)×4

(152)127+352+73+4

(153)89+276+135+33

(154)5+204+335+96

(155)25+71+75+29 +88

(156)243+89+111+57

(157)399+(154+201)

(158)480+325+75

(159)78+53+47+2291+89+11

(160)36+18+64

(161)168+250+32

(162)85+41+15+59

(163)78+46+154

(164)130-46-34

(165)263-96-104

(166)970-132-68

(167)400-185-15

(168)472-126-124

(169)168-28-72

(170)437-137-63

(171)244+182+56

(172)200-173-27

(173)124+68+76

(174)263-96-104

(175)970-132-68

(176)400-185-15

(177)472-126-124

(178)603+421 745-305

(179)951-395

(180)19+199+1999

(181)34+304+3004

(182)798+321

(183)325-156+675-144

(184)8+98+998+9998

(185)99999+9999+999+99+9+4

(186)582-157-182

(187)65×5×2

(188)15×23×4

(189)36×25

(190)25×125×32

(191)35×22

(192)5×(63×2)

(193)540÷45÷2

(194)540÷36

(195)216+305

(196)25×32

(197)47+236+64

(198)6×(15×9)

(199)402+359

(200)43+78+122+257

(201)25×(26×4)

(202)25×44

(203)354+(229+46)

(204)25×(4×12)

(205)25×(4+12)

(206)64×64+36×64

(207)99×99+99

(208)49×99+49

(209)49×99+49

(210)88+56+12

加法交换律:a+b=b+a 加法结合律:(a+b)+c=a+(b+c)

乘法交换律:a×b=b×a 乘法结合律:(a×b)×c=a×(b×c)

乘法分配律:(a+b)×c=a×c+b×c 或a×(b+c)=a×b+a×c

减法的性质:a-b-c=a-(b+c)

带着加减号搬家:a-b-c=a-c-b a-b+c=a+c-b a+b-c=a-c+b

怎么简便怎么算:

★ (23+56)+47   25×277×4   125×(3+8)

462-83-117   8×(30×125)   3200÷25÷4

★★ 425-38+75   5246-(246+694)   25×6+25×4

360÷(18× 4)   32×105   598+735

★★★99×38+38   98×34   25+75-25+75

48×125   540÷45   103×56

1. 67 ×21 +18 ×21 + 85 ×79

=21×(67+18)+85×79

=21×85+85×79

=85×(21+79)

=8500

2. 375 ×480 + 6250 ×48

=480×(375+625)

=480000

3. 321 ×81 + 321 ×19

=321×(81+19)

=32100

4. 222222 ×999999

=222222×(1000000-1)

=222222000000-222222

=222221777778

5. 333333 ×333333

=111111×999999

=111111×(1000000-1)

=111111000000-111111

=111110888889

6. 654321 ×909090 +654321×90909

=654321×999999

=654321×(100000-1)

=654321000000-654321

=654320345679

7. 34 ×3535 -35 ×3434

=34×35×101-35×34×101

=0

8. 345345 ÷15015

=345×1001÷(15×1001)

=345÷15×1001÷1001

=23

9. 75 ×45 + 17 ×25

=25×3×45+17×25

=25×(135+17)

=25×152

=25×4×38

=3800

10. (48 ×75 ×81)÷(24 ×25 ×27)

=48÷24×75÷25×81÷27

=2×3×3

=18