70% of 60 =
                   ( 42 )

30% of 60 =
                   (       )

40% of 10 =
                   (       )

90% of 60 =
                   (       )

80% of 90 =
                   (       )

50% of 70 =
                   (       )

80% of 70 =
                   (       )

50% of 70 =
                   (       )

80% of 60 =
                   (       )

          +[         ]

10% of 9 =
                   ( 0.9 )

60% of 5 =
                   (       )

20% of 9 =
                   (       )

80% of 2 =
                   (       )

4% of 50 =
                   (       )

4% of 30 =
                   (       )

50% of 4 =
                   (       )

50% of 5 =
                   (       )

90% of 3 =
                   (       )

          +[         ]

7% of 6 =
                   ( 0.42 )

7% of 5 =
                   (       )

6% of 6 =
                   (       )

3% of 8 =
                   (       )

7% of 2 =
                   (       )

6% of 6 =
                   (       )

4% of 6 =
                   (       )

6% of 9 =
                   (       )

6% of 2 =
                   (       )

          +[         ]

       ++[[            ]]