even numbers
odd numbers
workind days October 2014
2
1
1.10.2014
4
3
content
1. chapter
X
Y
Z
X+Y+Z
-20
27
100
20
20
7
60
60
80
7
10
7
16
4
10
Z-Y
YxZ
Z:X
Y : Z (%)
X2
X3
3√
?
X
X+Y
1
11
65
32
24
X-Y
XxY
Y:X
2 x (X - Y) + Y
Y=
100
playground area
width
10
length
20
30
40
50
60
15
20
30
40
price
width
10
length
price per 1 m2
20
30
40
50
60
1000
15
20
30
40