30% of 30 =
                   ( 9 )

10% of 60 =
                   (       )

20% of 10 =
                   (       )

60% of 60 =
                   (       )

20% of 10 =
                   (       )

30% of 70 =
                   (       )

40% of 30 =
                   (       )

80% of 80 =
                   (       )

30% of 20 =
                   (       )

          +[         ]

10% of 5 =
                   ( 0.5 )

60% of 1 =
                   (       )

5% of 90 =
                   (       )

1% of 30 =
                   (       )

40% of 1 =
                   (       )

10% of 4 =
                   (       )

7% of 40 =
                   (       )

3% of 60 =
                   (       )

9% of 80 =
                   (       )

          +[         ]

2% of 3 =
                   ( 0.06 )

5% of 6 =
                   (       )

1% of 2 =
                   (       )

8% of 4 =
                   (       )

9% of 3 =
                   (       )

3% of 7 =
                   (       )

9% of 2 =
                   (       )

6% of 4 =
                   (       )

8% of 2 =
                   (       )

          +[         ]

       ++[[            ]]