45 – [38 – {60 ÷ 3 – (6 – 9 ÷ 3) ÷ 3}]
0
26
14
21
Explanation:
45 – [38 – {60 ÷ 3 – (6 – 9 ÷ 3) ÷ 3}]
= 45 – [38 – {60 ÷ 3 – (6 – 3) ÷ 3}]
= 45 – [38 – {60 ÷ 3 – 3 ÷ 3}]
= 45 – [38 – {20 – 3 ÷ 3}]
= 45 – [38 – {20 – 1}]
= 45 – [38 – 19]
= 45 – 19
= 26