1. :) (+3,8)+(+1,2)+(-7)+(-1,15) ) (-2,5)+(-1,5)+(+5)+(-4) ) (-20)+(-9)+(-1)+(+20)) (-13)+(-5)+(+4)+(+16) ) (-5)+(+15)+(+5)+(-15)

2. :) -13+10-4+5-2+13-10-5 ) -2,5+1,5-0,5+3,15-5,2 ) -13,8+1,4-5,6+1,9-10,5

) 125

41

21

32

61

) 215

411

312

3. : =++ =+++ :

) =-5, =312 , =-3, =

21

) =31

, =41

, =412 , =-1

4. =(-10)+(-2), =(-1)+(+9), =+(+5), =+(-13)+(-5) =+++.

5. , : +=0, +(-8)+(-4)+(+10)=0 ++(-20)=0.

6. x, y, w, z, : x+y=0, w+z=0, x+(-5)+(-15)+(+30)=0, y+w+(-18)+(+30)+(+7)=0.

7. +=0, +=0 + = 0, ===0.

8. :) (-32)-(+5)-(-4)+(-10) ) -13-(+9)+(-12)-(-6) ) (-2,5)-(+1,5)-(-8,2)+(-1,3)

)

611

215

312 )

61

41

31

32

9. : = -(-4+1)-[-5+(-3+8)-(-9-2+3)]-(-6+14) = -(-5)-[(8+2+10)-(-6-20+10)]+(-9) = [-6-(+3)+(-8+2)]+[-5-(-7+12)] = 8-(-3)-[-(-9+5)+(-6+2)+(-3+7)]

10. : ++, -+-, --- :) =-8, =-15, =-3 ) =

32

, =41

, =21

11. =-9-|4-10|-(-25), =|-24-4+7|-|-5-9-6|, =-(-7)-(+5)+|-9+16| :) -+ ) -|-| ) |-|-) (-)+|-| ) (-)-|-|

12. :) -3- = -15 ) -27-(-) = -25 ) -(-9)+4 = -32) +5-(-10) = 15

) + 21

41

31

13. : = (-+)-(-)-(-8) = (-4)+(-+5)-(-3+) = -(--)-(--7)+(---11)

14. :[1]

= -3-(-5)-(-8) =-3 =+7 = -(-+3-)-(--15) =-8 = -(---13)+(--+-5), =-1

15. 2 3 (-) (+), . = -3-+--5 = -12-+-3 = -7+12--+8

16. -= +20, : = -3-(-7)-(13-) = (-)-(13-+) = (18-+-)-(-+--9) = -25-(--)+(---4)

17. , , : = -(-+)+(5-) = --(--)-(5-)

18. :) 3-(-2+)=-(13-18) ) 1-[-5-(7-)]=-(-9+5)-3

) 741

65

31

21

x

19. :) -3(4-10+15)

)

31

21

31

21

)

212

31

211

)

21

31

41

2123 ) (-1,7+1,5)(-3,8-1,2)-10(0,6-0,1) )

51

311568435

20. : =[3(-+5)-2(-)]-[-(1-3)-5(+2-4)], =31

, =

91

=52

21. : =3[-2(-+5)-8+5(2-3+4)]+7, =1, =-1 =-2

22. ) : 8, -5, -3/4, +1/5, -2,15, 0) ;

23. : = -3,8+1,5 = -15,9-1,6 = -10-9+5 = 8--15 = -12-13+25 = 3-14+5-20-2

24. :) (-2)(-4) ) (3-)(-1+) ) (5+)(-3)) (-)(-) ) (--)(+)

25. : = 3(+5)-6(2-1) +=-5

26. : =-4(-2+1)+2(-3+9) -=-3

27. +=1 +=-6 , = 2+2+2 -12.

28. , [-(-)]++(-) = 0.

[2]

29.

41

3125A , =(+5)(-4)(-20)(-30)(+8), =(-10)(+7)(-3)(-8)

.

30. , , , , , 0 :) (-12)(-7)(-) 0) (-2)(-3)(-5)(-10)0

31. :

) 2431

413

)

34

25

43

52

)

43

38

515

83

) (-2014)(+2010)0(-2015) ) (-2)(+10)(-7)(-3) ) (-4)(+5)(-2,5)(-2)(-0,01)

32. : = (+1)(+2)(+3)(+4) , =-1 = (-1)(+1)(-2)(+2) , =-2 = (2-1)(2+1)(-2)(+2) , =-3

33. =-2, : = [(+)-]-(-)

34. : =58

, =

43

, =

87

, =

710

35. :

=65

21

43

=

47

125

31

61

= 63

196 =

65:

41

31

36. :

=

45:

43

23:52 =

41

21:

21

31

125:

41

31

=

121:

31

61

34:

45

213 =

65

121

37:

21

31

41

37. :

=

45

312

61

43

21

=

1213

431

21

2

=

31

41

121

41

25

31

38. :

=

211

11

11

=

211

11

11

39. := 8725 xxx = 5212 : xx 0x

= 335

432

a 0,

= 4537 : 0 = 15284 : 0

[3]

40. :

= 6238410

= 3348

4375

= 24835

= 652

345

= 34

533

= 2342710

41. := 22 253523 = 522 682493275

=

34

42

42

2

21

212

91

323

31

216

42. :

=4357

65

31:

141

74

211:

232

=

21

31

23

32133

21

34

3

2422

=2

2

3

2

43

21

1521

21

54

21

=2223

21:1

21

31

45

25

31

274

=

34

65:

431

21

91

45

25

31

272

223

43. :

=112

214

313

21

=

121

41

31

21

41

31

21

= 002

2 201520142123

=2

1

243

32

44. :

= 12

132

1132

21322:

23

= 13223

4:121

213

41

32

= 121:

31

21

123

23

22:233

11

1

11212

45. =-2, :

= 4784

4849

yx

yx=

752

4335

521

yx

yx =

3973

6544

21

yx

yx

[4]

46. 21

yx

, :

=

22211

7352

y

xx=

328

5243

:

:

yy

xx=

2434

8254

:

:2

yy

xx

47. = -(-1+-1)++ , .

48. = 222

22111

a

, .49. :

02

20142

201432

123

a =

1103

2015

11 31

21:20142

21

31

50. x, y , :=

201437227 :

xyyx

[5]