20% of 50 =
                   ( 10 )

2% of 5 =
                   (       )

3% of 20 =
                   (       )

8% of 90 =
                   (       )

70% of 2 =
                   (       )

4% of 2 =
                   (       )

4% of 90 =
                   (       )

2% of 5 =
                   (       )

9% of 60 =
                   (       )

          +[         ]

3% of 2 =
                   ( 0.06 )

5% of 2 =
                   (       )

70% of 4 =
                   (       )

80% of 60 =
                   (       )

4% of 3 =
                   (       )

4% of 90 =
                   (       )

40% of 30 =
                   (       )

5% of 8 =
                   (       )

30% of 90 =
                   (       )

          +[         ]

5% of 7 =
                   ( 0.35 )

60% of 60 =
                   (       )

70% of 90 =
                   (       )

70% of 40 =
                   (       )

5% of 3 =
                   (       )

6% of 20 =
                   (       )

90% of 70 =
                   (       )

7% of 3 =
                   (       )

6% of 40 =
                   (       )

          +[         ]

       ++[[            ]]