a,$(36+79)+(145-79-36)$
=$36 + 79 + 145 -79 -36$
=$145$
b,$10-[12-(-9-1)]$
=$10-[12 +9 +1]$
=$10 -12 -9 -1$
=$-12$
c,$(45-99)-(45-13)-13$
=$45 - 99 - 45 +13 -13$
=$-99$
d,$128.[(-25+89)]-128.(89-125)$
=$128 .(-25) +128.89 - 128.89 +128.125$
=$128 .(-25) + 128 .125$
=$128(-25 +125)$
=$128 . 100$
=$12800$
e,$(-5).4.(-4).3.(-25)$
=$(-25).(-4).(-5).(-4).3$
=$100 . 20 .3$
=$2000.3$
=$6000$