60% of 70 =
                   ( 42 )

40% of 20 =
                   (       )

60% of 60 =
                   (       )

90% of 30 =
                   (       )

50% of 50 =
                   (       )

60% of 30 =
                   (       )

70% of 70 =
                   (       )

20% of 40 =
                   (       )

60% of 60 =
                   (       )

          +[         ]

4% of 10 =
                   ( 0.4 )

90% of 6 =
                   (       )

7% of 60 =
                   (       )

4% of 80 =
                   (       )

70% of 6 =
                   (       )

40% of 9 =
                   (       )

1% of 90 =
                   (       )

60% of 1 =
                   (       )

3% of 40 =
                   (       )

          +[         ]

5% of 7 =
                   ( 0.35 )

8% of 2 =
                   (       )

5% of 7 =
                   (       )

1% of 9 =
                   (       )

4% of 7 =
                   (       )

6% of 2 =
                   (       )

3% of 7 =
                   (       )

9% of 9 =
                   (       )

2% of 8 =
                   (       )

          +[         ]

       ++[[            ]]