Question

[-4+5]-{[-3+10]-[-6+5]}-7
13-{-8-[-6-(-3+12)-5]}-4-(-10)
15-{-[4+(-3-2)]-8-[-6-(10-4)]}-6
-9+(-6-8)-[-6-(-7)-9+10]
-{-[-(-9+7-8)-10]-11}+100-57
-42-[-63+{-37-(-82)-1}]+15

Answer 1

[-4+5]-{[-3+10]-[-6+5]}-7
= 1-{7-[-1]}-7
=1 - {7+1} -7
=1-8-7
=-14


13-{-8-[-6-(-3+12)-5]}-4-(-10)
= 13- {-8-[-6-(+9) -5]} -4+10
= 13- {-8-[-6-9 -5]} -4+10
=13- {-8-[-20]} -4+10
= 13- {-8+20} -4+10
= 13 -12 -4+10
=7


15-{-[4+(-3-2)]-8-[-6-(10-4)]}-6
= 15-{-[4+(-5)]-8-[-6-(6)]}-6
= 15-{-[4-5]-8-[-6-6]}-6
=15-{1-8+12}-6
= 15 -5 -6
=4

-9+(-6-8)-[-6-(-7)-9+10]
= -9-14-[-6+7-9+10]
= -9-14-2
= -25


-{-[-(-9+7-8)-10]-11}+100-57
= -{-[-(-10)-10]-11}+100-57
= -{-[10-10]-11}+100-57
= -{-11}+100-57
= 11+100-57
=54

-42-[-63+{-37-(-82)-1}]+15
= -42-[-63+{-37+82-1}]+15
= -42-[-63+44]+15
= -42-[-19]+15
= -42 +19+15
= -8

Answer 2

1 -{7-(-1)} -7= 1-{7+1}-7= 1-7-1-7= -14

13 -{-8-(-6-9)-5} -4+10= 13-{-8+6+9-5}+6= 13+8-6-9+5+6= 17

15-{-[4-5]-8 -[-6-10+4]}-6= 15-{-[-1]-8+6+10-4}-6=
15-{+1-12+16}-6= 15-1+12-16-6= 27-23= 4

-9+(-14) -[-6+7-9+10]= -9-14+6-7+9-10= 15-40= -25

-{-[+9-7+8-10]-11}+100-57=
-{-9+7-8+10-11}+100-57= +9-7+8-10+11+100-57=
128-74= 54

-42 -[-63+{-38+82}]+15= -42 -[-63-38+82]+15= -42+63+38-82+15= -124+116= -8