Multiplication Of Algebraic Expressions
Chapter Name : Algebraic Expressions And Identities |
Sub Topic Code : 104_08_09_06_01 |
Topic Name : Multiplication Of Algebraic Expressions |
|
Sub Topic Name : Introduction |
|
Introduction
An example of counting dots. The shortcut technique to count dots is to multiply them
Pre-Requisites:
Arithmetic expressions, terms.
Activity:
In a rectangular plot near your house, try to add a few meters of the neighbor’s plot to the existing one. To calculate the area, the resultant is an algebraic expression needed to be multiplied.
Real Life Question:
If the cost of a sweet is Rs.2 less than its original cost and the number of sweets required are 3 more, then -> Algebraic expression multiplication
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Multiplication of algebraic expression | Multiplying each term of one expression with each term of the other expression |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Marbles | Count the number of marbles & place them in different possible orders. Keep in mind how many of them are with you. Use multiplication to verify your answers. You can also remove a few marbles in a line & that way, form algebraic expressions. Try that! |
Real life uses :
Surveying a land, building a ship
Places to visit :
Amusement park
Practical examples around us
| Examples | Explainations |
|---|---|
| Sugar | The shopkeeper says cost of sugar increased by Rs.10, then the new cost of sugar = (p+10)(q) q= quantity |
| Wedding halls | The total number of seats in the hall is equal to the no. of rows multiplied by the number of columns. If chairs were added or removed, then u get the algebraic expression |
What you learn in Theory:
How & where Algebraic Expressions multiplication comes into picture
What you learn in Practice:
In many cases, general additions or subtractions may be required depending on the situations. The result of these situations having variables is multiplication of algebraic expressions