4% of 5 =
                   ( 0.2 )

8% of 50 =
                   (       )

80% of 2 =
                   (       )

2% of 50 =
                   (       )

50% of 7 =
                   (       )

40% of 50 =
                   (       )

20% of 40 =
                   (       )

60% of 70 =
                   (       )

90% of 80 =
                   (       )

          +[         ]

8% of 50 =
                   ( 4 )

30% of 70 =
                   (       )

60% of 50 =
                   (       )

5% of 40 =
                   (       )

30% of 2 =
                   (       )

6% of 7 =
                   (       )

90% of 50 =
                   (       )

20% of 9 =
                   (       )

8% of 6 =
                   (       )

          +[         ]

2% of 80 =
                   ( 1.6 )

2% of 60 =
                   (       )

6% of 30 =
                   (       )

4% of 8 =
                   (       )

5% of 2 =
                   (       )

50% of 50 =
                   (       )

80% of 90 =
                   (       )

50% of 80 =
                   (       )

40% of 9 =
                   (       )

          +[         ]

       ++[[            ]]