Question

3-(-3)²-(-3)³-(-3)⁴=

(-4)³-4³-((-5)⁴-5⁴)=

3·(7-(-2)³)-(1-(2-2²))=

3-{9-[18-(-2)³·(-3)²]}=

2⅔-5¼+0,75=

1 7/12 (ułamek) +1 5/6 (ułamek )-½ : ⅔=

-3,625-7¾+3½:(-1⅓)=

(-2⅔):(-1⅕)-(5 1/18 (ułamek )- 6 1/9 (ułamek ))=

⅔⁻½

----- =

¾-⅔

6/5(ułamek) - 2/7 (ułamek )

---------------------------------- =

2/5 (ułamek ) +⅔

1½-2,75

----------------------------------------- =

1 5/6(ułamek )- 2 1/12 (ułamek )

1,25 +27/8 (ułamek )

-------------------------- =

1 5/16 (ułamek ) +3/8(ułamek )

15/6(ułamek ) - 0,625

-------------------------------------=

4/13(ułamek )-25/39 (ułamek )

----- to jest da duża kreska ułamkowa np jak sie liczy ¼

--- =

½

Answer 1

3-(-3)²-(-3)³-(-3)⁴=

= 3 - 9 -9-(-27 )- 81 =

= -15 + 27 -81 =

= -69

 

(-4)³-4³-((-5)⁴-5⁴)=

= (-64) - 64 -[ 625 -625] =

= -128 - 0=

= -128

 

3·(7-(-2)³)-(1-(2-2²))=

= 3*[7- (-8)] - [1 -(2-4)]=

= 3*[7 +8 ] - [ 1 +2] =

= 3*15 - 3 =

= 45 -3 =

= 42

 

3-{9-[18-(-2)³·(-3)²]}=

= 3 - {9 -[ 18 -(-8)*9]} =

= 3 -{ 9 - [ 18 - (-72)]} =

= 3 - { 9 - [18 +72]} =

= 3 - ( 9 - 90)  =

= 3 - (-81) =

= 3 + 81 =

= 84

 

2⅔-5¼+0,75=

= 8/3 - 21/4 + 3/4 =

= 8/3 -  18/4 =

= 32/12 - 54/12 =

= - 22/12 =

= -11/6=

= -1 i 5/6

 

1 7/12 (ułamek) +1 5/6 (ułamek )-½ : ⅔=

= 19/12 + 11/6 -  (1/2)*(3/2) =

= 19/12 + 22/12 - 3/4 =

= 41/12 - 9/12 =

= 32/12 =

= 8/3 =

= 2 i 2/3

 

 

-3,625-7¾+3½:(-1⅓)=

= - 3 i 5/8 - 31/4 + 7/2 :(-4/3) =

= (-29/8) - 62/8 + (7/2)*(-3/4) =

= - 91/8 + (- 21/8) =

= -91/8 -21/8 =

= - 112/8 =

= -14

 

(-2⅔):(-1⅕)-(5 1/18 (ułamek )- 6 1/9 (ułamek ))=

=(-8/3) : (- 6/5) - (91/18 - 55/9)=

= (-8/3)*(-5/6) -  (91/18 - 110/18) =

= 20/9 - (- 19/18) =

= 20/9 + 19/18 =

= 40/18 + 19/18 =

= 59/18

 

 

 

⅔⁻½     4/6 - 3/6           1/6

-----  = -------------- =   ----------- = (1/6) : (1/12) = (1/6)*12 = 2

¾-⅔      9/12 - 8/12        1/12

 

6/5 - 2/7      42/35 - 10/35       32/35

------------ =  ------------------ = ---------- =(32/35):(16/15) = (32/35)*(15/16)=

2/5 +⅔           6/15 + 10/15         16/15

 

 

= 6/7

 

 

1½-2,75                3/2 - 11/4           6/4 -11/4          -5/4           -5/4

----------------- = ------------------- = ----------------- = ----------- = ----------

1 5/6 - 2 1/12       11/6 - 25/12      22/12 -25/12       -3/12       -1/4

 

 

= (-5/4):(-1/4) =  (-5/4)*(-4) = 5

 

 

1,25 +2 7/8        5/4 + 23/8        10/8 +23/8       33/8

---------------  = ----------------- = ---------------= ------------ =

1 5/16 +3/8       21/16 + 6/16     27/16              27/16

 

 

= (33/8):(27/16) = (33/8)*(16/27) = 22/9 = 2 i 4/9

 

 

15/6 - 0,625     11/6 - 5/8          44/24 - 15/24     29/24

----------------= ----------------- = ----------------- = ---------=

4/13-25/39      12/39 - 25/39         -13/39         - 1/3

 

 

= (29/24) : (-1/3) = (29/24)*(-3) = - 29/8 = - 3 i 5/8

 

 

 

----- to jest da duża kreska ułamkowa np jak sie liczy

 ¼

--- =  (1/4)*2 = 1/2

½