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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 p>

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< /p >

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

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

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=81/2

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

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