90% of 10 =
                   ( 9 )

70% of 50 =
                   (       )

90% of 10 =
                   (       )

40% of 60 =
                   (       )

80% of 80 =
                   (       )

90% of 60 =
                   (       )

50% of 20 =
                   (       )

10% of 60 =
                   (       )

50% of 90 =
                   (       )

          +[         ]

8% of 40 =
                   ( 3.2 )

3% of 90 =
                   (       )

2% of 80 =
                   (       )

8% of 20 =
                   (       )

1% of 90 =
                   (       )

80% of 3 =
                   (       )

9% of 30 =
                   (       )

9% of 50 =
                   (       )

6% of 70 =
                   (       )

          +[         ]

40% of 1 =
                   ( 0.4 )

6% of 80 =
                   (       )

70% of 3 =
                   (       )

30% of 1 =
                   (       )

1% of 50 =
                   (       )

7% of 10 =
                   (       )

50% of 8 =
                   (       )

70% of 6 =
                   (       )

90% of 1 =
                   (       )

          +[         ]

       ++[[            ]]