Question

a)10-(15+25)=
b)1-(25-18)=
c)40-18-(10+12)=
b)(2-7)-(8-13)
e) 7-(3+2+1)-6=

Answer 1

a) 10 - (15 + 25) = 10 - 40 = -30
b) 1 - (25 - 18)= 1 - 7 = -6
c) 40 - 18 - (10+12) = 22 - 22 = 0
d) (2-7) - (8-13) = -5 - (-5) = - 5 + 5 = 0
e) 7 - (3+2 + 1) - 6 =  7 - 6 - 6 = 7 - 12 = -5