4% of 70 =
                   ( 2.8 )

7% of 80 =
                   (       )

9% of 80 =
                   (       )

5% of 60 =
                   (       )

3% of 7 =
                   (       )

6% of 20 =
                   (       )

20% of 70 =
                   (       )

50% of 6 =
                   (       )

40% of 90 =
                   (       )

          +[         ]

70% of 90 =
                   ( 63 )

60% of 9 =
                   (       )

90% of 7 =
                   (       )

3% of 3 =
                   (       )

5% of 5 =
                   (       )

40% of 70 =
                   (       )

70% of 4 =
                   (       )

5% of 90 =
                   (       )

7% of 20 =
                   (       )

          +[         ]

4% of 60 =
                   ( 2.4 )

4% of 8 =
                   (       )

90% of 5 =
                   (       )

7% of 9 =
                   (       )

40% of 6 =
                   (       )

40% of 80 =
                   (       )

3% of 2 =
                   (       )

40% of 4 =
                   (       )

7% of 3 =
                   (       )

          +[         ]

       ++[[            ]]