• @Sludgeyy
    link
    91 year ago

    1% of 33 is .33

    .33 × 7 =

    .3 x 7 = 2.1

    .03 x 7 = .21

    21 + 2.1 = 2.31

    So

    7% of 33 = 2.31

    You could also do

    33% of 7

    10% of 7 is .7

    1% of 7 is .07

    So 11% is .77

    .77 × 3 =

    .7 × 3 = 2.1

    .07 × 3 = .21

    2.1 + .21 = 2.31

    • @PunnyName
      link
      51 year ago

      That’s pretty damned intensive for a trick that’s supposed to make the maths easier.