50% of 70 =
                   ( 35 )

30% of 20 =
                   (       )

20% of 20 =
                   (       )

80% of 20 =
                   (       )

80% of 50 =
                   (       )

20% of 80 =
                   (       )

10% of 80 =
                   (       )

70% of 80 =
                   (       )

70% of 20 =
                   (       )

          +[         ]

10% of 5 =
                   ( 0.5 )

3% of 60 =
                   (       )

40% of 9 =
                   (       )

1% of 30 =
                   (       )

60% of 6 =
                   (       )

3% of 90 =
                   (       )

90% of 9 =
                   (       )

9% of 20 =
                   (       )

4% of 80 =
                   (       )

          +[         ]

4% of 7 =
                   ( 0.28 )

9% of 6 =
                   (       )

5% of 2 =
                   (       )

3% of 4 =
                   (       )

5% of 2 =
                   (       )

7% of 6 =
                   (       )

8% of 3 =
                   (       )

1% of 5 =
                   (       )

5% of 7 =
                   (       )

          +[         ]

       ++[[            ]]