7% of 90 =
                   ( 6.3 )

9% of 8 =
                   (       )

6% of 6 =
                   (       )

7% of 20 =
                   (       )

30% of 60 =
                   (       )

8% of 60 =
                   (       )

2% of 9 =
                   (       )

3% of 50 =
                   (       )

50% of 20 =
                   (       )

          +[         ]

80% of 3 =
                   ( 2.4 )

9% of 30 =
                   (       )

4% of 8 =
                   (       )

7% of 30 =
                   (       )

50% of 2 =
                   (       )

60% of 60 =
                   (       )

7% of 8 =
                   (       )

8% of 30 =
                   (       )

60% of 90 =
                   (       )

          +[         ]

6% of 30 =
                   ( 1.8 )

8% of 2 =
                   (       )

2% of 50 =
                   (       )

20% of 2 =
                   (       )

9% of 9 =
                   (       )

20% of 20 =
                   (       )

5% of 6 =
                   (       )

2% of 5 =
                   (       )

9% of 7 =
                   (       )

          +[         ]

       ++[[            ]]