Tests Of Divisibility
Chapter Name : Playing With Numbers |
Sub Topic Code : 104_08_16_05_01 |
Topic Name : Tests Of Divisibility |
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Sub Topic Name : Divisibility By 10 |
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Introduction
Divisibility by 10.
Pre-Requisites:
Basic knowledge of divisor and multiple.
Activity:
Write down random numbers and you can observe that the numbers with unit digit 0 are divisible by 10.
Real Life Question:
If a number end with 5, is it divisible by 10?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Divisibility by 10 | If the unit digit is 0,then the number is divisible by 10 |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Divisibility by 10 test | Given a number find whether it is divisible by 10 or not. |
Real life uses :
If Rs 20 for 10 bananas then, how much is each banana?
Practical examples around us
| Examples | Explainations |
|---|---|
| If abcde is a 5 digit number. what is the minimum number to be added to make it divisible by 10 | 4,since the unit digit is 6,if we add 4 to it the unit digit becomes 0,which is divisible by 10 |
What you learn in Theory:
Divisibility by 10
What you learn in Practice:
Divisibility