Question

calcule
a1-(15+25) b)1-(25-18)
c)40-18-(10+12) d)2-7)-(8-13)
e)7-(3+2+1)-6 f)-15-(3+25)+4
g)-32-1-(-12+14) h)7+(-5-6)-2-3)
i)-6-(2-7+1-5)+1

Answer 1

a)1-(15+25)
   1-40=-39

b)1-(25-18)=
    1-7=-6
     
c)40-18-(10+12)=
   40-18-22=
   40-40=0

d)(2-7)-(8-13)=
    -5-(-5)=
    -5+5=0

e)7-(3+2+1)-6=
   7-6-6=
   7-12=
    -5

f)-15-(3+25)+4=
  -15-28+4=
  -43+4=
    -39

g)-32-1-(-12+14)=
   -32-1-2= -35

h)7+(-5-6)-2-3=
   7+(-11)-2-3=
   7-11-2-3=
   7-16= -9

i)-6-(2-7+1-5)+1=
  -6-(-9)+1=
  -6+9+1=
  -6+10= 4
   
 

Answer 2

a) 1-(15+25) = 1- 40 = - 39
b) 1-(25-18) = 1-7 = -6
c) 40-18-(10+12) = 22 - 22 = 0
d) (2-7) - (8-13) = -5 - 5 = -10
e) 7-(3+2+1)-6 = 7- 6 - 6 = 1 - 6 = - 5
f) -15-(3+25)+4 = -15 - ( + 28 ) + 4 = -15 - 28 + 4 = - 43 + 4 = - 39
g) -32-1-(-12+14) = - 33 - ( + 2 ) = - 33 - 2 = - 35
h) 7+(-5-6) -2-3 = 7 + ( - 11 ) - 5 = 7 - 11 - 5 = - 4 - 5 = - 9
i) -6-(2-7+1-5)+1 = -6 - ( - 5 + -4) + 1 = -6 - ( -5 -4 ) + 1 = -6 - ( -9) = -6 + 9 = 3