Question

potrxebuje jak najszybciej na dziś do 16:00

Oblicz pamiętając o kolejności wykonywania działań.

a)-6x9-(-36)podzielić na 4=

b)-17x3+7x(-13)podzielić na (-7)=

c)-2 1/2x8-(-5)x(- 2/15)=

DAM NAJJJJJJJJJ

Answer 1

a)
-6 x 9 -(-36)podzielić na 4 =
= -6 x 9 -(-9) = 
= -6 x 9 + 9 =
= -54 + 9 =
= -45
========================================
b)
-17 x 3 + 7 x (-13) podzielić na (-7) =
= -51 + (-91) : (-7) = 
= -51 - 91 : (-7) = 
= -51 + 13 = 
= -38
========================================
c)
-2 1/2 x 8 -(-5) x (- 2/15) =
= -2,5 x 8 - 2/3 = 
= -20 - 2/3 =
= -20 i 2/3