五年級數學題急,五年級上冊數學口算題400道帶答案 急!!

2021-05-09 17:27:37 字數 11117 閱讀 1124

1樓:匿名使用者

小王的步行速度是4.8千米/小時,小張的步行速度是5.4千米/小時,他們兩人從甲地到乙地去.

小李騎自行車的速度是10.8千米/小時,從乙地到甲地去.他們3人同時出發,在小張與小李相遇後5分鐘,小王又與小李相遇.

問:小李騎車從乙地到甲地需要多少時間?

先化單位

4.8千米/小時=80米/分

5.4千米/小時=90米/分

10.8千米/小時=180米/分

小李與小張相遇後,再與小王相遇,這段時間小李行了180*5=900米

小王行了

80*5=400米

兩人共行了

900+400=1300米

這1300米就是從小張比小王多行的,要多出這麼多路程要花1300/(450-400)=26分

這就是小張和小李相遇時,他們走的時間,甲乙兩地相距(90+180)*26=7020米

小李行完全程花:

7020/180=39分鐘

答:小李從甲地到乙地要花39分鐘

不要忘了加分哦

2樓:墨白殤染

5分鐘=1/20小時

(4.8+10.8)*1/20=0.78千米 小李與小張相遇時小張比小王多走的路程

(5.4-4.8)/0.78=10/13小時 小李與小張相遇時走的時間

(5.4+10.8)*10/13=162/13千米 甲乙兩地總路程

(162/13)/10.8=15/13小時 小李騎車從乙地到甲地需要的時間

3樓:安閒雲

10.8/(5.4-4.8) * 5/60=1.5小時

4樓:匿名使用者

設甲到乙距離有x千米`

則x/(10.8+5.4)-x/(10.8+4.8)=5

解出x即可求出騎車所需時間

五年級上冊數學口算題400道帶答案 急!!

5樓:討厭愺莓菋

1.45+15×6= 135

2.250÷

3.6×5÷2×4=60

4.30×3+8=98

5.400÷4+20×5= 200

6.10+12÷3+20=34

7.(80÷20+80)÷4=21

8.70+(100-10×5)=120

9.360÷40= 9

10.40×20= 800

11.80-25= 55

12.70+45=115

13.90×2= 180

14.16×6= 96

15.300×6= 1800

16.540÷9=60

17.30×20= 600

18.400÷4= 100

19.350-80= 270

20.160+70=230

21.18-64÷8= 10

22.42÷6+20=27

23.40-5×7= 5

24.80+60÷3=100

25.41+18÷2= 50

26.75-11×5= 20

27.42+7-29= 20

28.5600÷80=70

29.25×16= 400

30.120×25= 3000

31.36×11= 396

32.1025÷25=41

33.336+70= 406

34.25×9×4= 900

35.200-33×3= 101

36.3020-1010=2010

37.12×50= 600

38.25×8= 200

39.23×11= 253

40.125÷25=5

41.4200-2200=2000

42.220+80= 300

43.20×8×5= 800

44.600-3×200=0

45.20+20÷2= 30

46.35-25÷5= 30

47.36+8-40= 4

48.2800÷40=70

49.98÷14 = 7

50.96÷24 = 4

51.56÷14 =4

52.65÷13 = 5

53.75÷15 = 5

54.120÷24 =5

55.200÷25 = 8

56.800÷16 = 50

57.840÷21 =40

58.560÷14 = 40

59.390÷13 = 30

60.600÷15 =40

61.72÷24 = 3

62.85÷17 = 5

63.90÷15 =6

64.96÷16 = 6

65.78÷26 = 4

66.51÷17 =3

67.80÷40 = 2

68.100÷20 = 5

69.100÷4 =25

70.240÷40 = 6

71.920÷4 = 230

72.300÷60=5

73.64÷2 = 32

74.64÷4 = 16

75.50÷5 =10

76.60÷8 = 7.5

77.96÷4 = 24

78.90÷6 =15

79.400+80 = 480

80.400-80 = 320

81.40×80 =3200

82.400÷80 = 5

83.48÷16 = 3

84.96÷24 =4

85.160×5= 800

86.4×250= 1000

87.0×518= 0

88.10×76= 760

89.36×10=360

90.15×6= 90

91.24×3= 72

92.5×18= 90

93.26×4= 74

94.7×15=105

95.32×30= 960

96.40×15= 600

97.60×12= 720

98.23×30= 690

99.30×50=1500

100.5×700=350

2.8×0.4= 1.12

14-7.4=6.6,

1.92÷0.04=48,

0.32×500=160,

0.65+4.35= 5

10-5.4=4.6,

4÷20=0.2,

3.5×200=700,

1.5-0.06=1.44

0.75÷15=0.05,

0.4×0.8=0.32,

4×0.25=1,

0.36+1.54=2

1.01×99=99.99,

420÷35=12,

25×12=300,

135÷0.5=270

3/4 + 1/4 =1,

2 + 4/9 =22/9,

3 - 2/3 =7/3,

3/4 - 1/2= 1/4

1/6 + 1/2 -1/6 =1/2,

7.5-(2.5+3.8)=1.2,

7/8 + 3/8 =5/4

3/10 +1/5 =1/2,

4/5 - 7/10 =1/10,

2 - 1/6 -1/3 =1.5

0.51÷17=0.03,

32.8+19=51.8,

5.2÷1.3=4,

1.6×0.4= 0.64

4.9×0.7=3.43,

1÷5=0.2,

6÷12=0.5,

0.87-0.49=0.38

25 -15 -80 = 10 -80 = -7026 -6 -64 = 20 -64 = -4427 + 3 -48 = 30 -48 = -1828 + 12 -32 = 40 -32 = 829 + 21 -16 = 50 -16 = 3430 + 30 + 0 = 60 + 0 = 6031 + 39 + 16 = 70 + 16 = 8632 + 48 + 32 = 80 + 32 = 11233 + 57 + 48 = 90 + 48 = 13834 + 66 + 64 = 100 + 64 = 16435 + 75 + 80 = 110 + 80 = 19036 + 84 + 96 = 120 + 96 = 21637 + 93 + 112 = 130 + 112 = 24238 + 102 + 128 = 140 + 128 = 26839 + 111 + 144 = 150 + 144 = 29440 -30 -140 = 10 -140 = -13041 -21 -124 = 20 -124 = -10442 -12 -108 = 30 -108 = -7843 -3 -92 = 40 -92 = -5244 + 6 -76 = 50 -76 = -2645 + 15 -60 = 60 -60 = 046 + 24 -44 = 70 -44 = 2647 + 33 -28 = 80 -28 = 5248 + 42 -12 = 90 -12 = 7849 + 51 + 4 = 100 + 4 = 10450 + 60 + 20 = 110 + 20 = 13051 + 69 + 36 = 120 + 36 = 15652 + 78 + 52 = 130 + 52 = 18253 + 87 + 68 = 140 + 68 = 20854 + 96 + 84 = 150 + 84 = 23455 -45 -200 = 10 -200 = -19056 -36 -184 = 20 -184 = -16457 -27 -168 = 30 -168 = -13858 -18 -152 = 40 -152 = -11259 -9 -136 = 50 -136 = -8660 + 0 -120 = 60 -120 = -6061 + 9 -104 = 70 -104 = -3462 + 18 -88 = 80 -88 = -863 + 27 -72 = 90 -72 = 1864 + 36 -56 = 100 -56 = 4465 + 45 -40 = 110 -40 = 7066 + 54 -24 = 120 -24 = 9667 + 63 -8 = 130 -8 = 12268 + 72 + 8 = 140 + 8 = 14869 + 81 + 24 = 150 + 24 = 17470 -60 -260 = 10 -260 = -25071 -51 -244 = 20 -244 = -22472 -42 -228 = 30 -228 = -19873 -33 -212 = 40 -212 = -17274 -24 -196 = 50 -196 = -146

6樓:匿名使用者

17×40=680, 100-63=37, 3.2+

e68a84e8a2ad62616964757a686964616f313332646238621.68=4.88, 2.8×0.4= 1.12

14-7.4=6.6, 1.92÷0.04=48, 0.32×500=160, 0.65+4.35= 5

10-5.4=4.6, 4÷20=0.2, 3.5×200=700, 1.5-0.06=1.44

0.75÷15=0.05, 0.4×0.8=0.32, 4×0.25=1, 0.36+1.54=2

1.01×99=99.99, 420÷35=12, 25×12=300, 135÷0.5=270

3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4

1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4

3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5

0.51÷17=0.03, 32.8+19=51.8, 5.2÷1.3=4, 1.6×0.4= 0.64

4.9×0.7=3.43, 1÷5=0.2, 6÷12=0.5, 0.87-0.49=0.38

1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)

2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)

3.8+2-8+2

4.25*4/25*4

5.7.26-(5.26-1.5)

6.286+198

7.314-202

8.526+301

9.223-99

10.6.25+3.85-2.125+3.875

11.9-2456*21

12.0.5/11.5-4*2.75

13.1/2×3/5

14.3.375+5.75+2.25+6.625

15.1001-9036÷18

16.3.8×5.25+14.5

17.2.1*4.3+5.7*2.1

18.30×1/3

19.102*45-328

20.2/3×12

21.2.8*3.1+17.6/8

22.3/5×5/6

23.(50-12.5)/2.5

24.2/5×1/3

25.6110*47+639

26.1/2-1/6

27.3.5*2.7-52.2/18

28.1/7×1/5

29.3.375*0.97+0.97*6.625

30.25×4/5

31.6.54+2.4+3.46+0.6

32.5/6-1/2

33.95.6*1.8+95.6*8.2

34.1/2×1/5

35.600-420/12

36.344/3.6-5.4*0.25

37.16/2+30/2+90/6

38.3001-1998.

39.5000-105*34

40.0.15/0.25+0.75*1.2

41.(1/2+1/3+1/4)*0.24

42.(25+4)*4

43.300-4263/21

44.0.81/0.25+5.96

45.403÷13×27

46.1.5×4.2-0.75÷0.25

47.3.27×4 +3.27×5.7

48.(1.2+ 1.8)×4.51025-768÷32

49.0.25×80-0.45÷0.9

50.1025-768÷32

51.0.25*2.69*4

52.2348+275*16

53.2/9*15/8-1/12*9/5

54.2.4+2.4*(5.375-3.375)

55.645-45*12

56.0.15+1.2/0.24-0.45

57.3.75-(2.35+0.25/1.25)

58.76*1/4+23*25/100+0.25

59.10-2.87-7.13

60.0.96+9.6*9.9

61.7.5-5.7*1/3

62.12.37-3.25-6.75

63.16*6.8+2.2*16+16

64.401*19+284

65.58.7-16.65/3.7

66.0.4*4.7*2.5+(2.3+5.3)

67.9.31-1.125-7.875

68.640+128*45

69.8.2*1.6-0.336/4.2

70.400*(0.62+0.08)

2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2

4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35

4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14

30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18

5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4

10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5

8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8

9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18

123+25=148 123-35=88 56×7=392 135÷5=27

248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...

456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...

879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...

457+456=913...

脫式計算

30.8÷[14-(9.85+1.07)]

[60-(9.5+28.9)]÷0.18

2.881÷0.43-0.24×3.5

20×[(2.44-1.8)÷0.4+0.15]

28-(3.4+1.25×2.4)

2.55×7.1+2.45×7.1

777×9+1111×3

0.8×〔15.5-(3.21+5.79)〕

(31.8+3.2×4)÷5

31.5×4÷(6+3)

0.64×25×7.8+2.2

2÷2.5+2.5÷2

194-64.8÷1.8×0.9

36.72÷4.25×9.9

5180-705×6

24÷2.4-2.5×0.8

(4121+2389)÷7

671×15-974

469×12+1492

405×(3213-3189)

3.416÷(0.016×35)

0.8×[(10-6.76)÷1.2]

19.4×6.1×2.3

5.67×0.2-0.62

18.1×0.92+3.93

0.0430.24+0.875

0.4×0.7×0.25

0.75×102 100-56.23

0.78+5.436+1

4.07×0.86+9.12.5

30.8÷[14-(9.85+1.07)]

[60-(9.5+28.9)]÷0.18

2.881÷0.43-0.24×3.5

20×[(2.44-1.8)÷0.4+0.15]

28-(3.4+1.25×2.4)

2.55×7.1+2.45×7.1

777×9+1111×3

0.8×〔15.5-(3.21+5.79)〕

(31.8+3.2×4)÷5

31.5×4÷(6+3)

0.64×25×7.8+2.2

2÷2.5+2.5÷2

194-64.8÷1.8×0.9

36.72÷4.25×9.9

5180-705×6

24÷2.4-2.5×0.8

(4121+2389)÷7

671×15-974

469×12+1492

405×(3213-3189)

3.416÷(0.016×35)

0.8×[(10-6.76)÷1.2]

19.4×6.1×2.3 5.67×0.2-0.62

18.1×0.92+3.93 0.0430.24+0.875

0.4×0.7×0.25 0.75×102 100-56.23

0.78+5.436+1 4.07×0.86+9.12.5

簡算是乘號 /是除號

0.3*2.5*0.4

50*0.13*0.2

0.8*630*0.125

0.78*101

1.5*102

9.8*25

1.2*2.5+0.8*2.5

1.25*0.7*0.8

0.038*5*2.1

3.8+4.5+6.2

93/0.31/3

3.25-0.84-0.16

88*0.25*4

2.8*3.6+1.4*2.8

63*10.1

(3.2+0.128)/0.8

9.83*1.5+6.17*1.5

10.1*87

312*4+188*4

0.135*500*0.2

6.3+0.84+3.7+8.16

18.75-0.43-4.57

0.25*0.03*4

13.7*0.25*8

2.65*1.7+1.35*1.7

32.8+5.6+7.2

(2.5+0.25)*0.4

8*(2.5*0.25)

8.4*0.2+1.6*0.2

1.25*0.8*0.5

(1.5+0.25)*0.4

1.2*0.4+1.3*0.4

方程9+6x=14

x+9x=4+7

2x+9=17

8-4x=6

6x-7=12

7x-9=8

x-56=1

8-7x=1

x-30=12

6x-21=21

6x-3=6

9x=18

4x-18=13

5x+9=11

6-2x=11

x+4+8=23

7x-12=8

x-5.7=2.15

15 5x-2x=18

3x 0.7=5

x+13=33

3 - 5x=80

1.8 +6x=54

6.7x -60.3=6.7

9 +4x =40

2x+8=16

3.5×2= 4.2 x

26×1.5= 2x

0.5×16―16×0.2=4x

9.25-x=0.403

16.9÷x=0.3

x÷0.5=2.6

3-5x=80

1.8-6x=54

6.7x-60.3=6.7

9 +4x=40

0.2x-0.4+0.5=3.7

9.4x-0.4x=16.2

12-4x=20

1/3x+5/6x=1.4

12x+34x=1

18x-14x=12

23 x-5×14=14

12+34x=56

22-14x=12

23x-14x=14

x+14x=65

23x=14x+14

30x12x-14x=1

x-0.7x=3.6

這是我自己打上去的抄襲者必死

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