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7894-6 =1315.666666
5/4 e
Ee
73948
7,894+
+
7894.
68
6°
=
1315.67
|
] * 3 ] 5 * 67
2 i
"CUT"
ENA
SIAR
78946
|
7,894+
=
7'894,
68
6°
=
1315.66
nnn
nnn
(-45)}x89+ 12=-3993
fac]
O- C
—]
O-
-
450
45- x | [45
8903 |
89- +: | -4005.,
128
12+
=
~—3'993.
.
-3,993+
*
Constant calculations (+ /—/ x /=+)
Calculos con constantes
(+ /—/x«/-+)
3+1.2=4.2
6+1.2=7.2
Constant sign
te
Simbolo de constante
1228
1-2
+
fe
|
12 + / / 4.2)
38
3+ =
4-2
*
68
6 .
=
K
7.2
7-2
*
VARA
RA AAR ARR
2.3x12=27.6
4.5x12=54
a
as
120
o
2038
4058
z
54.
2.52=6.25
2.59=15.625
2.54=39,0625
i
Si ss lng, 1
aa
2058
2°5
x
a
295
x
=)
2°5 =
6°25
*
e
6:25 =
15+*625
*
SB)
15-625 =
39-0625
x
Memory calculations
Calculos con memoria
53+6=
59
23-8=
15
56x2=112
+} 99-4=
24.75
210.75
"pe
cs
M
C
533
i
aes
66)
6- =|
("59
ra ae
Memory sign
+ | Simbolo de memoria
238
23°
-
Bi)
8.
=
155
M
+
56
26"
x
2 (s}
2°
3
112+
M
+
998
99+
+
4m
4+
=
m
24.75
24°75
M
+
on)
210-75
M
mM
210.75
7+7-TH2]X3IH2X3)=19
= z z z
ND
~} fs] in w
up
i)
M
C
7%)
7. M
+
9)
7) M
+
fe)
7+
M
28
2+ x
30)
3. =
6°
M
+
(wa)
6°
M
+
Ui Recital
|
Percentage calculations
Calculos de porcentaje
12% of 1500
12% de 1500
ad aad
1s00g | = 1.500- x| [1500]
12@)
12> %| |_______—180..|
|
180+
*
Percentage of 660 against 880
Porcentaje de 660 contra 880
ad
oneal
6608
|
660° =| [___ 660.]
880%)
880°
%)
*A constant is utilized in these percentage cal-
culations.
*En estos caélculos de porcentaje se utiliza una
constante.
% add-on of 2500
ee de aumento sobre 2500
a ae
sacat
sean ato oe
250083
2,500-
xj [|_
2500.
15)
15+
%
375.
|
375+
x
2,875+
+
2'875.
*
What will the selling price and profit be when the
purchasing price of an item is $480 and the profit
rate to the selling price is 25%?
Recargos
iCual sera el precio de venta y la ganancia cuan-
do el precio de compra de un item es $480 y la
ganancia det precio de venta es del 25%?
i l
eRe
e a Cre ee
4808
480+
+
480.
25%
25- %| [7
640,
640+
*
{Selling price)
{Precio de venta)
5 |
160+
-'
ee
Sag
Profit)
(Subsequently),
(Ganancia}
{Subsecuentemente)
increase/decrease
lf you made $80 last week and $100 this week,
what is the percent increase?
Subas y bajas
St ta semana anterior Ud. gané $480 y esta se-
mana $100 ¢cual es e! porcentaje de suba?
eee
aaa
ae
1008
10+
=
80%)
80-
%
25+)
*
(%)
Pro-rating
Prorrateo
:
Cc
840
|
84+
+
1538
153+
+
1388
138-
+
1008
100°
+
i=]
3°75
=
844
B4+ =
22:4
M
|
f
1538
153- = | [FT
40.8]
40°8
M
:
1388
138+ =
36-8
M
+
S|
100.
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