Current location - Training Enrollment Network - Mathematics courses - The fourth grade mathematics oral calculation problem volume one
The fourth grade mathematics oral calculation problem volume one
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

1.0 1×99=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

0.5 1÷ 17=0.03,

32.8+ 19=5 1.8,

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

7.3 14-202

8.526+30 1

9.223-99

10.6.25+3.85-2. 125+3.875

1 1.9-2456*2 1

12.0.5/ 1 1.5-4*2.75

13. 1/2×3/5

14.3.375+5.75+2.25+6.625

15. 100 1-9036÷ 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

2 1.2.8*3. 1+ 17.6/8

22.3/5×5/6

23.(50- 12.5)/2.5

24.2/5× 1/3

25.6 1 10*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

3 1.6.54+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

38.300 1- 1998.

39.5000- 105*34

40.0. 15/0.25+0.75* 1.2

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

42.(25+4)*4

43.300-4263/2 1

44.0.8 1/0.25+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)×4.5 1025-768÷32

49.0.25×80-0.45÷0.9

50. 1025-768÷32

5 1.0.25*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

6 1.7.5-5.7* 1/3

62. 12.37-3.25-6.75

63. 16*6.8+2.2* 16+ 16

64.40 1* 19+284

65.58.7- 16.65/3.7

66.0.4*4.7*2.5+(2.3+5.3)

67.9.3 1- 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

5 1/9* 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

6 1/60* 122= 120

7/2*28=8 6/ 1*48=8

9/7* 18= 14

25/7* 100=28

9/5*8 1=45

8/9* 16= 18

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

5 1/9* 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

6 1/60* 122= 120

7/2*28=8

6/ 1*48=8

9/7* 18= 14

25/7* 100=28

9/5*8 1=45

8/9* 16= 18

12÷3/5= 12×(5/3)

9÷6/7=9×( 7/6 )

30÷5/6=30×(6/5 )

4×(3/2 )=4÷2/3

4÷5/7=4×7/5

3÷4/5=3×5/4

24÷7/ 16=24×( 16/7 )

A÷C/B=A×B/C

4÷4/5=5

6÷3/4=8

10÷2/5=25

18÷4/9=8 1/2

4×4/5= 16/5

6×3/4= 18/4

10×2/5=4

18×4/9=8

3÷3/4=4

2÷ 1/3=6

6÷4/5= 15/2

1÷5/7=7/5

3/4÷3= 1/4

1/3÷2= 1/6

4/5÷6=2/ 15

5/7÷ 1=5/7

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

5 1/9* 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

6 1/60* 122= 120

7/2*28=8

6/ 1*48=8

9/7* 18= 14

25/7* 100=28

9/5*8 1=45

8/9* 16= 18

Related articles
  • Excellent Lecture Notes on "Add and subtract Integer Decimal"
  • Do you learn statistics well in undergraduate mathematics reading?
  • Department Construction of Shanxi Institute of Engineering and Technology
  • What are the 20 doctoral programs in Shanghai University?
  • When to use mathematics, when to use it, and when to use it.
  • Do you remove brackets and denominator 100 from the answer to the seventh grade one-dimensional linear equation?
  • High school English is generally 80 points. How to improve the college entrance examination to 130? Whose online class do you listen to? Has anyone listened to Mr. Jinhua's class? OK or not?
  • 50 points! ! How to teach five-year-old children to read?
  • Mathematics Synchronization (Qingdao Edition) The answer on page 42-43 of the second volume of the sixth grade is kneeling.
  • What exercise books are good for junior high school subjects? How much should I do?

    • copyright 2024 Training Enrollment Network All rights reserved