1. NUMBERS (FRACTIONS)
1. a) Classify the following numbers placing them in every category they belong to:
−1
2 2 0,4
6
3
 3, 1
-7 1,21341256... 0 2,00 1
4
5
6
Rational Numbers Integers Whole Numbers Natural Numbers Irrational Numbers
b) Write three more numbers in each category.
c) Draw the categories as boxes in a map below these lines showing the relations between them and
place the numbers given in the “smallest” category they belong to.
2. Find out the result. After that, write out he first line of operations and the result in English:
Example:
1
4
−
3
5
·(2
3
−
6
3)=
1
4
−
3
5
·(−4
3 )=
1
4
+
4
5
=
5+16
20
=
21
20
One fourth minus three fifths times parenthesis two thirds minus six thirds
parenthesis equals twenty one twentieths.
a)
1
2
−
4
3
−(2
8
−
5
4 ) b) [3
2
+
14
5
·(2
7
−
3
4)]−
1
2
c)
3
5
+(5
3
−
6
9)·
2
3
d)
3
6
−
4
5
:(7
2
−
3
5)