9 +(-2)x〔18-(-3)x 2〕÷ 4
=9 +(-2)x 〔18-(-6)〕÷ 4=9 +(-2)x 〔18+6〕÷ 4
=9 +(-2)x 24 ÷ 4
=9 +(-48)÷ 4
=9-12
=-3
1.計算 9 +(-2)x〔18-(-3)x 2〕÷ 4之值為何? (A) -..-阿摩線上測驗