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: Find the mean of the following: 1, 2, 3, 4, 5 Step 1: Find the sum of all numbers → 1+2+3+4+5 = 15 Step 2: Divide total by the number of numbers → 15 ÷ 5 = 3
Example: 23
3
8
4
Example: -2 + -3 =
-5
5
-1
Example:
-4
-2
=
2
Example:
-4 x -2 =
8
Example:
-4 - -2 =
-2
Example: This is a book. Method: Figure out the noun that can be touched, heard, seen, smelled or tasted and select it. Answer: The noun in the above sentence is 'book'. Therefore, the answer is 'book'.