70% of 7 =
                   ( 4.9 )

5% of 70 =
                   (       )

6% of 2 =
                   (       )

80% of 5 =
                   (       )

9% of 7 =
                   (       )

40% of 80 =
                   (       )

80% of 40 =
                   (       )

4% of 8 =
                   (       )

20% of 80 =
                   (       )

          +[         ]

30% of 5 =
                   ( 1.5 )

2% of 5 =
                   (       )

6% of 80 =
                   (       )

8% of 50 =
                   (       )

3% of 4 =
                   (       )

30% of 3 =
                   (       )

70% of 60 =
                   (       )

60% of 50 =
                   (       )

3% of 5 =
                   (       )

          +[         ]

20% of 40 =
                   ( 8 )

60% of 20 =
                   (       )

5% of 7 =
                   (       )

3% of 3 =
                   (       )

20% of 3 =
                   (       )

30% of 60 =
                   (       )

60% of 8 =
                   (       )

20% of 80 =
                   (       )

30% of 50 =
                   (       )

          +[         ]

       ++[[            ]]