5% of 70 =
                   ( 3.5 )

30% of 30 =
                   (       )

4% of 4 =
                   (       )

80% of 3 =
                   (       )

40% of 7 =
                   (       )

90% of 7 =
                   (       )

30% of 4 =
                   (       )

20% of 20 =
                   (       )

50% of 70 =
                   (       )

          +[         ]

20% of 60 =
                   ( 12 )

20% of 40 =
                   (       )

30% of 5 =
                   (       )

90% of 90 =
                   (       )

20% of 40 =
                   (       )

80% of 70 =
                   (       )

60% of 60 =
                   (       )

60% of 4 =
                   (       )

20% of 50 =
                   (       )

          +[         ]

40% of 7 =
                   ( 2.8 )

30% of 70 =
                   (       )

60% of 50 =
                   (       )

80% of 9 =
                   (       )

3% of 70 =
                   (       )

50% of 6 =
                   (       )

90% of 80 =
                   (       )

8% of 4 =
                   (       )

60% of 70 =
                   (       )

          +[         ]

       ++[[            ]]