20% of 20 =
                   ( 4 )

3% of 20 =
                   (       )

70% of 50 =
                   (       )

90% of 7 =
                   (       )

80% of 7 =
                   (       )

40% of 70 =
                   (       )

60% of 90 =
                   (       )

50% of 2 =
                   (       )

2% of 70 =
                   (       )

          +[         ]

3% of 3 =
                   ( 0.09 )

9% of 60 =
                   (       )

5% of 70 =
                   (       )

9% of 8 =
                   (       )

2% of 60 =
                   (       )

50% of 30 =
                   (       )

5% of 20 =
                   (       )

9% of 2 =
                   (       )

2% of 70 =
                   (       )

          +[         ]

80% of 7 =
                   ( 5.6 )

7% of 5 =
                   (       )

50% of 60 =
                   (       )

30% of 20 =
                   (       )

8% of 7 =
                   (       )

80% of 30 =
                   (       )

6% of 7 =
                   (       )

50% of 70 =
                   (       )

40% of 8 =
                   (       )

          +[         ]

       ++[[            ]]