Question

1.Oblicz:

a) -5,56+(-2,08)-1,35

b) 6,51+(-2,775)-11,125

c) -10/9+(1/6)+9 3/4-(6,25)

d) -9,3-(12 1/5)-(72,8-(-13,002))

2.Oblicz

a) -1 1/4*(-4)

b)-6 2/3:2

c)-0,2*(0,2)

d)-3 1/3*(3)

e) (-3)do kwadratu *1/3

f) (1/3)do kwadratu *(-9)

g)-6 do kwadratu:1/2

h)3 3/4:(-1,25) do kwadratu

Prosze o pomoc musze miec na jutro daje Naj!!!!!!!

Answer 1

1. a) -5,56+2,808=-2,752

b)3,735-11,125=-7,39

c)-10/9+1/6+39/4-25/4=40/36+6/36+351/36-225/36=-265/36+357/36=2 20/36

d)-93/10-(61/5)-(72,8-13,002)=-93/10-61/10-59,798=-154/10-59,798=-15,4-59,798=75,198

Answer 2

a) -5,56 +(-2,08) -1,35 = - 8,99

b) 6,51 + (-2,775) -11,125 = -13,9 + 6,51 = -7,39

c) -10/9 +(1/6) +9i3/4 -(6,25) = -10/9 +1/6 +9i3/4 -6i1/4= -1i1/9 +1/6 +3i 1/2 =

     = -1i2/18 +3/18 +3i9/18= -1i2/18 + 3i12/18 = 2 i 10/18 = 2i 5/9

d) -9,3 -(12i1/5) -(72,8-(-13,002))= -9,3 -12,2 -(59,798)= -81,298

2.

a) -1i1/4 *(-4)= -5/4 * (-4)=  -5/1 * (-1) = 5

b) -6i2/3 : 2 = -20/3 * 1/2 = -10/3 *1/1 = -10/3 = -3i 1/3

c) -0,2 * (0,2) = -0,04

d) -3i1/3 * 3 = 10/3 *3 = -10/1 *1/1 = -10

e) (-3)^2 *1/3 = 9 *1/3 = 9/3 = 3

f) (1/3)^2 *(-9)= 1/9 * (-9)=  -9/9 = -1

g) 6^2  : 1/2 = 36 * 2/1 = 72

h) 3i3/4 : (-1,25)^2 = 3,75 : 1,5625 = 2,4