Question

Calcule :
a)45-35-25-15=
b)-35+15-25+5=
c)-5+25-35+15=
d)5-35+15-45=

Answer 1

a) 45-35-25-15=

   45 -75 =

        -30

b)-35+15-25+5

  -35 -25 +15 +5 =

  -60        + 20 =

  -40

c)-5+25-35+15 =

  +25 +25 -5 -35 =  

  +50 -40 =

  +10

d- 5 - 35 = -30

-30 + 15 = -15

-15 - 45 = -60