① 4 × 6 ÷ ( 3 - 2 )
= 24 ÷ 1
= 24
② 6 × 2 + 4 × 3
= 12 + 12
= 24
③ ( 6 - 3 ) × 2 × 4
= 3 × 8
= 24
④ 6 × [ 4 ÷ (3 - 2)]
= 6 × [ 4 ÷ 1 ]
= 6 × 4
= 24