40 - [30 - {4 + 32 ÷ (10 - ¯¯¯¯¯¯¯¯¯¯¯¯4−2 )}]
= 40 - [30 - {4 + 32 ÷ (10 - 2 )}] [Simplifying bar bracket]
= 40 - [30 - {4 + 32 ÷ 8}] [Simplifying ()]
= 40 - [30 - {4 + 4}]
= 40 - [30 - 8] [Simplifying {}]
= 40 - 22 [Simplifying []]
= 18
Simplify 40 - [30 - {4 + 32 ÷ (10 - ¯¯¯¯¯¯¯¯¯¯¯¯4−2 )}]
Simplify:
(1) 2+(−4)−(+3)
(2) −5+4−(−2)
(3) 10+(−5)−(−4)
(4) 12−(+6)+(−3)
(5) −15+(−4)−(+3)