Example: Find the median of the following: 1, 2, 1, 5, 5 Step 1: Sort the list → 1, 1, 2, 5, 5 Step 2: Count of numbers listed → 5 (odd) Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
Grades:
5
6
7-12
Example: 5 - 2 = ?
Method: Count the number of balloon shown = 5. Remove 2 balloons.Answer: Count the number of balloons left = 3
Grades:
Pre-K
Example: Number: 4
3
5
7
Grades:
2
Example:
LCM (least common multiple) of 3 and 6
3
6
9
Grades:
5
6
7-12
Example:
358 ___ 432
>
=
<
754 ___ 586
more than
equal to
less than
Grades:
2
Example:
4
6
5
6
>
=
<
Grades:
3
4
Example: Counting down from 5, which number comes next? 4
Start from 5 and count down (5, 4, 3, 2, ...). The number that comes before 5 is 4.