30% of 10 =
                   ( 3 )

10% of 50 =
                   (       )

30% of 90 =
                   (       )

60% of 60 =
                   (       )

20% of 80 =
                   (       )

30% of 60 =
                   (       )

40% of 10 =
                   (       )

80% of 60 =
                   (       )

30% of 90 =
                   (       )

          +[         ]

1% of 40 =
                   ( 0.4 )

6% of 80 =
                   (       )

50% of 8 =
                   (       )

20% of 2 =
                   (       )

4% of 90 =
                   (       )

20% of 3 =
                   (       )

8% of 30 =
                   (       )

30% of 4 =
                   (       )

10% of 6 =
                   (       )

          +[         ]

30% of 9 =
                   ( 2.7 )

40% of 8 =
                   (       )

10% of 3 =
                   (       )

6% of 10 =
                   (       )

4% of 40 =
                   (       )

10% of 1 =
                   (       )

80% of 7 =
                   (       )

6% of 60 =
                   (       )

7% of 10 =
                   (       )

          +[         ]

       ++[[            ]]