72 – 4(40 + 24 ÷ 6 × 6 – 4 × 4) + 40
72 – 4(40 + 24 ÷ 6 × 6 – 4 × 4) + 40 72 – 4(40 + 24 – 16) + 40 =72-192+40 =-80.
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