Question

efetue.
a) ( -25 ) + ( -14 ) =

b) (65) - (-52) =

c) ( 25:(-5)) + ((-49) : (-7)) =

d) (-14)+(+25) - (-12) - (-10) =

Answer 1

a)
=  ( -25 ) + ( -14 ) 
= - 25 - 14
= - 39

*************************
b)
= (65) - (-52)
=  65 + 52
= 117

***************************************
c)
= ( 25:(-5)) + ((-49) : (-7)) 
= - 5 + 7
= 2

*****************************

d)
= (-14)+(+25) - (-12) - (-10)
= - 14 + 25 + 12 + 10
= 25 - 14 + 22
= 11 + 22
= 33

****************************