A) $4567 + (1234 -4567)-4$
= $4567+1234-4567 -4$
= $(4567-4567)+(1234-4)$
=$1230$
B) $2001 - (53+1579)-(-4)$
= $(2001 - 53) - 1579 + 4$
= $1948 - 1579 +4$
= $373$
C) $35 - 17 +2017 - 35 +(-2017)$
= $35 - 17 + 2017 - 35 - 2017$
= $(35 - 35) + (2017 - 2017) -17$
= $-17$
D) $11 . 107 + 11 . 18 - 25 . 11$
= $11 . (107 + 18 - 25 )$
= $11 . 100$
= 1100
E) $115 - ( -85) + 53 - ( - 500 + 53)$
= $115 + 85 + 53 - ( - 447)$
= $( 115 + 85 ) + ( 53 + 447 )$
= $200 + 500$
= $700$
F) $( -18) + (-31) + 98 + |-18| + (-69)$
= $(-18) + (-31) + `98 + 18 + (-69)$
= $[(-18) + 18] + [( -31) + (-69 ] +98$
= $( - 100) + 98$
= $2$
G) $17 . ( 15 - 16 ) + 16 ( 17 - 20 )$
= $17 . 15 - 17 . 16 + 16 . 17 - 16 . 20$
= $17 . 15 - 16 . 20$
= $255 - 320$
= $-65$
H) $15 . ( -176 ) + 15 . 76 + 100 + 15$
= $15 . ( - 176 + 76 + 1 ) + 100$
= $15 . ( -99 ) + 100$
= $- 1485 + 100$
= $-1385$
@Meizy