Chapter Name : Algebraic Expressions And Identities |
Sub Topic Code : 104_08_09_05_01 |
Topic Name : Addition And Subtraction Of Algebraic Expression |
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Sub Topic Name : Addition And Subtraction Of Algebraic Expression |
Addition & subtractions are performed by grouping the like terms
Terms, coefficients and variables, Addition & Subtraction :P
At a book stall, in a shelf, he would place books of same category in separate racks & maintain an individual count of them so that it is easy for him to pick them when a customer arrives and also so he knows how many of each type were sold.
Key Words | Definitions (pref. in our own words) |
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Addition/subtraction of expressions | Group the like terms & perform the operations |
Gadgets | How it can be used |
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Dry fruits (with individual values) | Whenever you give a count of dry fruits, you must group the similar ones (Almond, Cashew etc.) and then add them up. |
If you want to calculate the number of machinery parts in any particular machine, the varieties of each machine & no. of each of them will be considered, leading to the addition of terms
Book shops, Grocery stores
Examples | Explainations |
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Shipped goods | While unloading goods from a ship, they are unloaded in groups. Has nothing really to do with an algebraic expression, but knowing the importance of grouping is needed. |
Addition or subtraction of two algebraic expressions can be obtained by identifying the like terms & grouping them. After that, add up all the unlike terms which is in the form of an expression. This is the end result.
Grouping of like terms is feasible and intervenes in every phase of our life
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