40% of 3 =
                   ( 1.2 )

2% of 40 =
                   (       )

7% of 7 =
                   (       )

90% of 90 =
                   (       )

60% of 30 =
                   (       )

2% of 60 =
                   (       )

20% of 6 =
                   (       )

60% of 20 =
                   (       )

30% of 40 =
                   (       )

          +[         ]

9% of 70 =
                   ( 6.3 )

9% of 70 =
                   (       )

40% of 5 =
                   (       )

30% of 6 =
                   (       )

7% of 30 =
                   (       )

80% of 8 =
                   (       )

50% of 6 =
                   (       )

5% of 5 =
                   (       )

50% of 60 =
                   (       )

          +[         ]

9% of 6 =
                   ( 0.54 )

30% of 70 =
                   (       )

40% of 20 =
                   (       )

7% of 40 =
                   (       )

8% of 5 =
                   (       )

50% of 70 =
                   (       )

60% of 9 =
                   (       )

70% of 50 =
                   (       )

80% of 20 =
                   (       )

          +[         ]

       ++[[            ]]