Card Sort
Find the decimal value of each of the following expressions.
Sort the numbers into 3-5 different categories based on their decimal notation.
Expression
Decimal Notation
Expression
12
15
13
20
121
15
8
27
10
0.0064
20
4
20
12
3
10
27
9
227
99
21
6
75
0.34
30
6
9
4
28
9
16
25
5
9
24
36
81
0.25
121
81
Decimal Notation
Category 1:
Examples
What do the #s have in common?
Category 2:
Examples
What do the #s have in common?
Category 3:
Examples
What do the #s have in common?
Category 4:
Examples
What do the #s have in common?
Category 5:
Examples
What do the #s have in common?
Category 6:
Examples
What do the #s have in common?
Category 7:
Examples
What do the #s have in common?
Category 8:
Examples
What do the #s have in common?
12
15
13
20
15
8
27
10
20
4
12
3
27
9
30
6
5
9
27
9
227
99
21
6
121
81
0.0064
0.25
20
10
75
0.34
121
81
9
4
16
25
24
36