70% of 70 =
                   ( 49 )

50% of 20 =
                   (       )

60% of 60 =
                   (       )

10% of 30 =
                   (       )

50% of 50 =
                   (       )

60% of 30 =
                   (       )

70% of 80 =
                   (       )

20% of 40 =
                   (       )

70% of 60 =
                   (       )

          +[         ]

5% of 10 =
                   ( 0.5 )

1% of 60 =
                   (       )

80% of 5 =
                   (       )

5% of 80 =
                   (       )

7% of 70 =
                   (       )

50% of 9 =
                   (       )

20% of 1 =
                   (       )

7% of 10 =
                   (       )

40% of 4 =
                   (       )

          +[         ]

6% of 7 =
                   ( 0.42 )

8% of 2 =
                   (       )

5% of 7 =
                   (       )

2% of 1 =
                   (       )

4% of 6 =
                   (       )

7% of 2 =
                   (       )

3% of 7 =
                   (       )

9% of 9 =
                   (       )

2% of 8 =
                   (       )

          +[         ]

       ++[[            ]]