30% of 90 =
                   ( 27 )

10% of 50 =
                   (       )

20% of 80 =
                   (       )

60% of 50 =
                   (       )

20% of 70 =
                   (       )

20% of 60 =
                   (       )

30% of 10 =
                   (       )

80% of 60 =
                   (       )

30% of 90 =
                   (       )

          +[         ]

10% of 3 =
                   ( 0.3 )

6% of 80 =
                   (       )

4% of 80 =
                   (       )

10% of 1 =
                   (       )

4% of 80 =
                   (       )

10% of 2 =
                   (       )

70% of 2 =
                   (       )

30% of 4 =
                   (       )

90% of 5 =
                   (       )

          +[         ]

2% of 90 =
                   ( 1.8 )

40% of 7 =
                   (       )

90% of 2 =
                   (       )

6% of 90 =
                   (       )

30% of 5 =
                   (       )

1% of 10 =
                   (       )

8% of 70 =
                   (       )

5% of 50 =
                   (       )

70% of 1 =
                   (       )

          +[         ]

       ++[[            ]]