切符パズル

9 ＋ ( 9 ÷ ( 3 × 3 ) )
9 ＋ 9 ÷ ( 3 × 3 )
9 ＋ 9 ÷ 3 ÷ 3
9 ＋ ( 9 ÷ 3 ) ÷ 3
9 ＋ ( 9 ÷ 3 ÷ 3 )
9 ÷ 9 ＋ 3 × 3
( 9 ÷ 9 ) ＋ 3 × 3
( 9 ÷ 9 ) ＋ ( 3 × 3 )
9 ÷ 9 ＋ ( 3 × 3 )