NCERT Class 8 Mathematics Solutions: Chapter 16 –Playing with Numbers Exercise 16.1 Part 1

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Example of playing with number

Example of Playing with Number

Example of playing with number

1. Find the values of the letters in the following and give reasons for the steps involved.

Answer:

On putting and so on and we get,

in which ones place is .

And

Putting and carry over ,

we get

So,

2. Find the values of the letters in the following and give reasons for the steps involved.

Answer:

On putting and so on and we get,

in which ones place is .

And

Putting and carry over ,

we get

So,

3. Find the values of the letters in the following and give reasons for the steps involved.

Answer:

On putting

And so on and we get,

in which ones place is 6.

So,

Understanding of Number system

Understanding of Number System

Understanding of Number system

1. Find the values of the letters in the following and give reasons for the steps involved.

Answer:

On putting ,

we get

Putting at ones place and carry over ,

we get For

So,

2. Find the values of the letters in the following and give reasons for the steps involved.

Answer:

On putting ,

Now ,

Then

Putting at tens place and carry over ,

we get

So,

3. Find the values of the letters in the following and give reasons for the steps involved.

Answer:

Putting ,

we get

Now again we add

Tens place digit is and carry over 1.

Now

So,