Answer:
56 + 23 + (-5)
you want to expand the bracket first
23 + (-5)
23-5 = 18
56 + 18 = 74
a) 74
6 + 24 + (-2)
24 - 2= 22
6 + 22 = 28
b) 28
3 + 7 + (-42)
7 - 42 = -35
3 - 35 = -32
c)-32
( 8 + 1 ) + (-3)
+(-3) = -3
9 - 3 = 6
d)6
( 7 + 10 ) + ( 3 + 1 )
17 + 4 = 21
e)21
59 + 2+ (-6)
2+(-6) = 2-6 = -4
59-4
55
f)55
41 + ( -89)
41 - 89
= - 48
g)-48
( - 13) + 33
-13+33
= 20
h) 20