User manual - Chapter 8 E-Mail and SMS

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a 0.
53 + 123 – 63 = 53q123w63u 113.
963 · (23 – 56) = 23w56e963u – 31’779.
(56 · 3 – 89)
‚ 5.2 + 63 = 56e3w89r5.2
q63u 78.1923076923
1234567890 · 741852 = 1234567890e741852u E 915.866658332
C 915.866658332
a 0.
3
· 5= 3ye5u 8.6602540378
12 + 23 = 23qq12u K + 35.
45 + 23 = 45u K + 68.
78 + 23 = 78u K + 101.
7 – 5.6 = 5.6ww7u K – 1.4
2 – 5.6 = 2u K – – 3.6
2.3 · 12 = 12ee2.3u K · 27.6
4.5 · 12 = 4.5u K · 54.
45 ‚ 9.6 = 9.6rr45u K ‚ 4.6875
78 ‚ 9.6 = 78u K ‚ 8.125
12% of 1500 1500e12t 180.
Percentage of 660 against 880 660r880t 75.
15% add-on of 2500 2500e15tq 2’875.
25% discount of 3500 3500e25tw 2’625.
480q25t 640.
w 160.
100w80t 25.
80 · 9 = 720 {80e9| M 720.
–) 50 · 6 = 300 50e6} M 300.
20 · 3 = 60 20e3| M 60.
480 \ M 480.
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%?
If you made $80 last week and $100
this week, what is the percent
increase?
To perform calculations