【評論主題】7. 下列算式哪一個錯誤？(A) 12 × (−6) × 2 = 12 × (−6 × 2) (B) 12 ÷ (−6) ÷ 2 = 12 ÷ (−6 ÷ 2)(C) 12 ÷ (−6) ÷ 2 =

【評論內容】

答案是B 

依題意 (☆) 12 ÷ (−6) ÷ 2 = ...