Possible Combinations | Mathematics Olympiad Class 4 PDF Download

What Are Combinations?

• Combinations are different ways we can put things together or arrange them.
• It's like making a recipe with different ingredients or choosing what clothes to wear from your wardrobe.

Types of Combinations

• With Objects: When we have different objects, like toys or fruits, and we want to see how many ways we can group or arrange them.
• With Numbers: When we have numbers and want to see how many different ways we can combine them to make a total, like in math problems.

How to Find Possible Combinations:

• With Objects: We can count the different ways we can arrange objects, like putting toys in different boxes or arranging fruits on a plate.
• With Numbers: We can use math to find combinations. For example, if we have three colors of balls and want to choose two, we can use a formula to find the number of combinations.

Strategies for Finding Combinations

• List Them Out: We can list all the possible combinations one by one to make sure we don't miss any.
• Use Patterns: Sometimes, we can see a pattern in the combinations, like when choosing colors or arranging items in a sequence.

Example:

• If we have three colors of shirts (red, blue, and green) and two pairs of pants (black and khaki), we can find out how many different outfits we can make by mixing and matching them.

If we have three colors of shirts (red, blue, and green) and two pairs of pants (black and khaki), we can find out how many different outfits we can make by mixing and matching them.

• If we have three colors of shirts (red, blue, and green) and two pairs of pants (black and khaki), we can find out how many different outfits we can make by mixing and matching them.