Category : 3rd Class
LEARNING OBJECTIVES
This lesson will help you to:
Real life Examples
DIAGRAMS/PICTURES
There are 12 daisies. Make groups of 3.
I How many groups do you get?
How many 3's are in 12?
The answer is 4. So. 12 - 3 = 4.
The symbol'\[\div \]' indicates Division.
Think: If you DIVIDE 10 into groups of two, how many groups are there?
How many groups of two are there in 10? How many two’s are there in 10?
Since 2+2+2+2+2= 10, there are FIVE twos in 10; 10 \[\div \] 2 = 5
Division is the equal distribution of a given quantity. The number to be divided is called the dividend. The number which divides is called the divisor. The answer is called the quotient. The number left after the division is called the remainder.
Chunmun bought 15 apples from fruit market. She placed 15 apples equally in 3 baskets.
Divide 15 into equal groups.
There are 5 apples in each group.
Therefore, 15 - 3 = 5
1. Mrs. Khanna got 35 flowers on her wedding anniversary.
She placed them equally in 5 vases.
There were 7 flowers in each vase.
So, 35 - 5 = 7 or
"Thirty five divided by five is seven."
2. Minki arranged 32 glasses on the dining table for guests.
Amazing Facts
1857 ÷ 0 = infinity.
Historical Preview
Shortcut to Problem Solving
Minki's mother made 8 groups of the glasses.
There ore 4 glasses in each group.
So, 32 - 8 = 4 or
"Thirty two divided by eight is four."
DIVISION AS REDPEATED SUBTRACTION
We know that 4 + 4 + 4 = 12 is repeated addition similarly. 12 - 4 - 4 - 4 = 0 is a repeated subtraction.
RELATION BETWEEN MULTIPLICATION AND DIVISION
20 x 30 = 600 is a multiplication fact.
The division fact for this can be written as:
600\[\div \]30 = 20
Therefore, the multiplication is an inverse of division.
Division by Grouping/Sharing
Step 1: Take the given number of objects
Step 2: Make equal groups of the objects
Step 3: Count Number of objects in each group
Step 4: The number of objects in each group is the answer
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