80% of 30 =
                   ( 24 )

50% of 7 =
                   (       )

5% of 60 =
                   (       )

90% of 8 =
                   (       )

4% of 60 =
                   (       )

40% of 90 =
                   (       )

20% of 70 =
                   (       )

50% of 3 =
                   (       )

20% of 90 =
                   (       )

          +[         ]

3% of 4 =
                   ( 0.12 )

6% of 70 =
                   (       )

3% of 80 =
                   (       )

8% of 50 =
                   (       )

30% of 40 =
                   (       )

90% of 70 =
                   (       )

80% of 90 =
                   (       )

8% of 80 =
                   (       )

3% of 6 =
                   (       )

          +[         ]

60% of 6 =
                   ( 3.6 )

6% of 20 =
                   (       )

5% of 7 =
                   (       )

8% of 40 =
                   (       )

40% of 6 =
                   (       )

40% of 90 =
                   (       )

5% of 40 =
                   (       )

40% of 30 =
                   (       )

2% of 9 =
                   (       )

          +[         ]

       ++[[            ]]