20% of 60 =
                   ( 12 )

90% of 90 =
                   (       )

60% of 90 =
                   (       )

50% of 60 =
                   (       )

10% of 90 =
                   (       )

20% of 10 =
                   (       )

70% of 60 =
                   (       )

70% of 70 =
                   (       )

70% of 10 =
                   (       )

          +[         ]

1% of 80 =
                   ( 0.8 )

10% of 4 =
                   (       )

8% of 40 =
                   (       )

50% of 2 =
                   (       )

80% of 5 =
                   (       )

1% of 30 =
                   (       )

6% of 80 =
                   (       )

60% of 5 =
                   (       )

80% of 7 =
                   (       )

          +[         ]

1% of 10 =
                   ( 0.1 )

30% of 3 =
                   (       )

9% of 80 =
                   (       )

5% of 10 =
                   (       )

3% of 90 =
                   (       )

4% of 20 =
                   (       )

7% of 30 =
                   (       )

50% of 1 =
                   (       )

7% of 60 =
                   (       )

          +[         ]

       ++[[            ]]