60% of 70 =
                   ( 42 )

60% of 30 =
                   (       )

70% of 70 =
                   (       )

20% of 40 =
                   (       )

50% of 50 =
                   (       )

80% of 40 =
                   (       )

90% of 90 =
                   (       )

40% of 50 =
                   (       )

80% of 70 =
                   (       )

          +[         ]

60% of 2 =
                   ( 1.2 )

20% of 7 =
                   (       )

1% of 60 =
                   (       )

50% of 7 =
                   (       )

9% of 70 =
                   (       )

6% of 10 =
                   (       )

1% of 90 =
                   (       )

8% of 20 =
                   (       )

5% of 40 =
                   (       )

          +[         ]

7% of 70 =
                   ( 4.9 )

90% of 6 =
                   (       )

6% of 10 =
                   (       )

90% of 7 =
                   (       )

8% of 30 =
                   (       )

6% of 80 =
                   (       )

40% of 6 =
                   (       )

2% of 30 =
                   (       )

1% of 70 =
                   (       )

          +[         ]

       ++[[            ]]