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Example: 4
5
Example:
red ball to blue balls
3:2
2:1
3:5
2:5
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.
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.
Example: Lucy had 1 blue, 3 green and 4 red pens. What type of a ratio is 3:4??
whole to part
part to whole
part to part
Example:
LCM (least common multiple) of 3 and 6
3
6
9
Example: 4
3
Example: 4
=
|-4|
Example: 22 =
4
Example: -15, -5, -65, -68, -85
-85, -68, -65, -15, -5
-68, -65, -15, -5, -85
-15, -85, -5, -68, -65
Example: -15, -5, -65, -68, -85
-5, -15, -65, -68, -85
-68, -5, -15, -65, -85
-5, -85, -15, -68, -65
Example: -4
4
Example:
3:7
7
3
4
7
3
7
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