90% of 30 =
                   ( 27 )

70% of 70 =
                   (       )

80% of 20 =
                   (       )

30% of 70 =
                   (       )

80% of 10 =
                   (       )

40% of 80 =
                   (       )

90% of 40 =
                   (       )

90% of 90 =
                   (       )

90% of 20 =
                   (       )

          +[         ]

30% of 5 =
                   ( 1.5 )

3% of 20 =
                   (       )

6% of 10 =
                   (       )

30% of 3 =
                   (       )

1% of 20 =
                   (       )

3% of 40 =
                   (       )

9% of 50 =
                   (       )

90% of 7 =
                   (       )

60% of 8 =
                   (       )

          +[         ]

8% of 3 =
                   ( 0.24 )

6% of 6 =
                   (       )

7% of 3 =
                   (       )

4% of 5 =
                   (       )

2% of 2 =
                   (       )

9% of 7 =
                   (       )

6% of 3 =
                   (       )

7% of 5 =
                   (       )

5% of 3 =
                   (       )

          +[         ]

       ++[[            ]]