Commutative Property of Addition
2026-02-28 13:06 Diff
https://brightchamps.com/en-us/math/numbers/commutative-property-of-addition

Commutative property of addition is applicable to many daily life situations. It can be used in scenarios such as shopping, budgeting, cooking, keeping scores in games, and task planning.

Counting objects: When counting objects, the order of adding doesn't affect the result. For example, if you have 5 black pens, 2 red pens, and 5 blue pens, total number of pens = 5 black pens + 2 red pens + 5 blue pens = 12 pens. Order does not matter.

Planning for a trip: When going for a trip, we usually count the clothes while packing. For example: If you are packing 4 shirts and 6 trousers or 6 trousers and 4 shirts, the total items will be \(6 + 4 = 10\). Order does not matter. This helps track the number of items quickly. 

Cost calculation while shopping: While shopping, you can add your prices of items that you bought in any order, which does not affect the total price of items. For example, you bought a bag for $100 and a book for $30. If you calculate \($100 + $30\) or \($30 + $100 \) to get the total cost, the total cost will still be $130. 
 

Adding ingredients while cooking: Combining ingredients in cooking does not require any order, as they give the same total quantity. For example, adding 2 cups of flour and 3 cups of sugar is the same as adding 3 cups of sugar and 2 cups of flour. 
 

Classroom attendance: While taking the total attendance or count of students in a class, combining groups of students in any order does not change the total count. For example, if there are 22 girls and 20 boys, the teacher can count in any order like \(22 + 20\) or \(20 + 22\), and the sum will be the same.