Introduction to Numbers

Q.

Write the numerals:

Nine lakh ninety-nine thousand nine hundred ninety-nine

Q.

Is there any natural number that has no successor? Is there a last natural number?

Q.

Among all the natural numbers, which is the smallest and the largest natural number? [2 MARKS]

Q.

Write the numeral for Six lakh seventy two thousand eight

Q. Write the smallest and the greatest numbers of 4-digits without repetition of any digit.​

Q. 9999 is the largest 4 digit number.

1. False
2. True

Q.

Are all whole numbers also natural numbers?

Q. The difference between the smallest three digit number and largest two digit number is 1.

1. True
2. False

Q. Write thirty two lakhs fifty five thousand two hundred in International number system.

Q.

Write the numerals for each of the following$:$

Seventeen lakh three thousand seventeen

Q.

The smallest 4 digit number using the digits 5, 0, 4, 7.

1. 5470

2. 4057

3. 5740

4. 0457

Q. Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
4, 89, 348 – 48, 366

Q.

Which of the following is not a natural number?

1. 1

2. 11

3. 0

4. 5

Q.

Express 84 as the sum of twin prime

Q.

How many whole numbers are there between 46 and 77?

Q.

Write the second smallest 7-digit number having four different digits.

Q.

Write the numeral for the following:

Seven crore two lakh eighty-seven

Q.

Write the predecessor of the following.

Smallest $6$-digit whole number

Q.

There are _____ whole numbers up to 1000.

Q.

What are co-prime numbers

Q.

Write the numerals for each of the following$:$

Four crore three lakh twenty thousand one hundred four

Q.

A group of digits denoting a number is called ________________.

Q.

What is Number System and its Types?

Q.

Write Seventy one - lakh seven in numerals.

Q.

The Height of A Person Is$1.75m,$ Express It Into $cm.$.

Q. Sum of the largest five-digit number and 1 will be equal to number.

1. smallest four-figit
2. smallest six digit
3. largest six digit

Q.

Question 4(b)

Determine if the following ratios form a proportion. Also, write the middle terms and extreme terms where the ratios form a proportion:

39 litres : 65 litres and 6 bottles : 10 bottles

Q.

How many composite numbers exist from 1 to 12?

1. 6

2. 5

3. 4

4. 3

Q. Which of the following symbols is not used to compare two numbers?

1. $>$
2. $<$
3. $=$
4. $+$

Q. Of 7, 12, 540 and 71, 25, 400 which number is greater and by how much?