3% of 80 =
                   ( 2.4 )

70% of 5 =
                   (       )

70% of 40 =
                   (       )

90% of 70 =
                   (       )

30% of 50 =
                   (       )

60% of 60 =
                   (       )

4% of 5 =
                   (       )

80% of 9 =
                   (       )

4% of 7 =
                   (       )

          +[         ]

6% of 2 =
                   ( 0.12 )

9% of 40 =
                   (       )

7% of 2 =
                   (       )

2% of 20 =
                   (       )

7% of 5 =
                   (       )

50% of 9 =
                   (       )

30% of 60 =
                   (       )

9% of 20 =
                   (       )

70% of 7 =
                   (       )

          +[         ]

40% of 20 =
                   ( 8 )

9% of 8 =
                   (       )

80% of 40 =
                   (       )

6% of 8 =
                   (       )

80% of 70 =
                   (       )

7% of 7 =
                   (       )

70% of 20 =
                   (       )

5% of 50 =
                   (       )

40% of 7 =
                   (       )

          +[         ]

       ++[[            ]]