30% of 50 =
                   ( 15 )

80% of 10 =
                   (       )

90% of 60 =
                   (       )

30% of 40 =
                   (       )

80% of 40 =
                   (       )

90% of 30 =
                   (       )

10% of 80 =
                   (       )

50% of 30 =
                   (       )

10% of 50 =
                   (       )

          +[         ]

8% of 80 =
                   ( 6.4 )

30% of 8 =
                   (       )

20% of 5 =
                   (       )

80% of 6 =
                   (       )

1% of 70 =
                   (       )

80% of 7 =
                   (       )

40% of 1 =
                   (       )

1% of 90 =
                   (       )

7% of 30 =
                   (       )

          +[         ]

9% of 6 =
                   ( 0.54 )

2% of 3 =
                   (       )

8% of 5 =
                   (       )

4% of 1 =
                   (       )

8% of 5 =
                   (       )

9% of 2 =
                   (       )

6% of 7 =
                   (       )

3% of 1 =
                   (       )

6% of 5 =
                   (       )

          +[         ]

       ++[[            ]]