80% of 10 =
                   ( 8 )

20% of 50 =
                   (       )

30% of 90 =
                   (       )

60% of 10 =
                   (       )

20% of 80 =
                   (       )

70% of 60 =
                   (       )

80% of 60 =
                   (       )

80% of 30 =
                   (       )

80% of 50 =
                   (       )

          +[         ]

6% of 80 =
                   ( 4.8 )

60% of 5 =
                   (       )

90% of 4 =
                   (       )

6% of 60 =
                   (       )

40% of 5 =
                   (       )

2% of 20 =
                   (       )

30% of 3 =
                   (       )

8% of 50 =
                   (       )

50% of 2 =
                   (       )

          +[         ]

3% of 1 =
                   ( 0.03 )

1% of 5 =
                   (       )

6% of 1 =
                   (       )

8% of 3 =
                   (       )

5% of 6 =
                   (       )

8% of 1 =
                   (       )

9% of 1 =
                   (       )

2% of 3 =
                   (       )

8% of 1 =
                   (       )

          +[         ]

       ++[[            ]]