Exercises

 

Example Questions:

Voorbeeld vragen:

Exemple de questions :

Beispiel Fragen:

Esempio delle Domande:

例題：

Preguntas de ejemplo:



+    1 [+] 1 [=]

+    1 [+] 2 [=]

+    2 [+] 3 [+] 4 [+] 3 [+] 3 [=]

  1. +   5 [+] 10 [=]  (1 is 20% of 5, 10 is 200% of 5)

  2. +   5 [+] 100 [=]  (100 is 20 times 5)


−    2 [−] 1 [=]

−    4 [−] 1 [=]

−    4 [−] 3 [=]


×    2 [×] 3 [=]

×    2 [×] 4 [=]

×    1.5 [×] 2 [=]

×    2 [×] .5 [=]

×    .8 [×] .75 [=]   (0.8 × 75%)


÷    4 [÷] 1 [=]

÷    6 [÷] 2 [=]     (÷ 2 is the same as × ½)

÷    1 [÷] 2 [=]

÷    1 [÷] 4 [=]

÷    4 [÷] .5 [=]  (÷ ½ is the same as × 2)


Repeating Features: The following keystrokes illustrate some repeating functions.



    2 [+] [=] [=] [=] [=]

    3 [+] [=] [=] [=] [=]

    5 [+] [=] [=] [=] [=]

    2 [×] [=] [=] [=] [=]



  1. +%    10 [+] 50 [%=]

  2. +%    10 [+] 20 [%=]

  3. +%    8 [+] 75 [%=]


− %    10 [−] 20 [%=]

− %    10 [−] 50 [%=]

− %    12 [−] 25 [%=]


× %    4 [×] 50 [%=]

× %    5 [×] 80 [%=]

× %    8 [×] 25 [%=]


∆%    2 [∆%] 3 [∆=]

∆%    8 [∆%] 10 [∆=]

∆%    4 [∆%] 2 [∆=]

∆%    50 [∆%] 55 [∆=]


∆%:  The Greek letter Delta is used to

            indicate a change.


∆%: From 2 to 3

    2 [∆%] 3 [∆=]

∆ = (3 - 2) = 1

∆% = 1 ÷ 2 = 50%


∆%: From 8 to 10

   8 [∆%] 10 [∆=]

∆ = (10 - 8) = 2

∆% = 2 ÷ 8 = 25%


∆%:  From 4 to 2

  4 [∆%] 2 [∆=]

∆ = (2 - 4) = -2

∆% = -2 ÷ 4 = -50%


∆%:  General Equation

  a [∆%] b [∆=]

∆ = (b - a)

∆% = (∆ ÷ a) × 100




Margin Functions:

Example:

Sell - Cost - Profit - Margin

Enter any two:

36 [cost] 48 [sell]

36 [cost] 37 [margin]  (37% of the selling price is profit)

45 [sell] 15 [profit]  (in this case the margin bump buttons will adjust the cost to achieve increased or decreased margin targets)