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## Chapter: 5th Maths : Term 3 Unit 7 : Information Processing

Solving a multiplication problem involving 2 three digit numbers.

UNIT−7

INFORMATION PROCESSING

Situation 1

Karkuyil and Kayalvizhi are sisters. Their mother asked them to arrange their cupboards. Karkuyil arranged her cupboard within 10 minutes while Kayalvizhi could not arrange them. When Kayalvizhi asked Karkuyil about this, she told her that she had split the task of arranging the cupboards in two smaller tasks namely,

1. Sorting the things and

2. Keeping the things in shelves

Karkuyuil could complete the work in less time and easily also.

Situation 2

Mugilan is the secretary of the Math club in his school. The principal of the school has announced for a quiz competition and Mugilan is given the incharge of arranging for the competition.

Write the tasks to be done by Mugilan.

Selecting the students

Sorting the students

Frame groups

Preparing Topic

Crafting questions

Write the result

Activity

Consider the situation

Vizhyan’s birthday is on Wednesday. His father asked his sister Poovizhi to arrange for the party. She is happy to do it but does not know how to arrange for the party. Her father suggested her to first break the event into smaller tasks and complete those tasks one by one. Poovizhi thought that this way she could easily arrange for the party. If you are Poovizhi what would be tasks you will plan for. Write the smaller tasks which you will arrange.

Solving a multiplication problem involving 2 three digit numbers.

Let us split the task of multiplying 2 three digit numbers into the following steps.

Multiplying 2 three digit numbers can be done easily if we do it step by step.

Step 1 − Multiplying the ones digit with the first number

Step 2 − Multiplying the tens digit with the number

Step 3 − Multiplying the hundreds digit with the first number

Step 4 − Add all the results of step 1, step 2 and step 3 to find the multiplication of

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5th Maths : Term 3 Unit 7 : Information Processing : Able to split bigger task into smaller known task | Information Processing | Term 3 Chapter 7 | 5th Maths