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Chapter: 7th Maths : Term 2 Unit 1 : Number System

Exercise 1.4

7th Maths : Term 2 Unit 1 : Number System : Exercise 1.4 : Text Book Back Exercises Questions with Answers, Solution

Exercise 1.4

 

1. Write the decimal number represented by the points P. Q, R, and S on the given number line.


Answer:

P(3.6), Q(1.3), R(6.8), S(4.2) .

 

2. Represent the following decimal numbers on the number line.

(i) 1.7

(ii) 0.3

(iii) 2.1

Answer:


 

3. Between which two whole numbers, the following decimal numbers lie?

(i) 3.3

(ii) 2.5

(iii) 0.9

i) 3.3 The decimal number lies between 3 and 4.

ii) 2.5 The decimal number lies between 2 and 3,

iii) 0.9 The decimal number lies between 0 and 1.

 

4. Find the greater decimal number in the following.

(i) 2.3, 3.2

2.3, 3.2

Comparing the whole number part,

2 < 3

So, 3.2 > 2.3

The greater decimal number is 3.2.

(ii) 5.6, 6.5

5.6, 6.5

Comparing the whole number part,

5 < 6

So, 6.5 > 5.6

The greater decimal number is 6.5.

(iii) 1.2,2.1

1.2, 2.1

Comparing the whole number part,

1 < 2

So, 2.1 > 1.2

The greater decimal number is 2.1.

 

5. Find the smaller decimal number in the following.

(i) 25.3, 25.03

The whole number parts of the two decimal numbers are equal.

Comparing the digits of tenth place, 0 < 3

So, 25.03 < 25.3

The smaller decimal number is 25.03.

(ii) 7.01, 7.3

The whole number parts of the two decimal numbers are equal.

Comparing the digits of tenth place, 0 < 3 

So, 7.01 < 7.3

The smaller decimal number is 7.01.

(iii) 5.6,6.05

Comparing the whole number parts of the two decimals,

5 < 6

So, 5.6 < 6.05

The smaller decimal number is 5.6.

 

Objective type questions

 

6. Between which two whole numbers 1.7 lie?

(i) 2 and 3

(ii) 3 and 4

(iii) 1 and 2

(iv) 1 and 7

Answer : (iii) 1 and 2

 

7. The decimal number which lies between 4 and 5 is ____

(i) 4.5

(ii) 2.9

(iii) 1.9

(iv). 3.5

Answer : (i) 4.5

 

ANSWERS:

Exercise 1.4

1. P(3.6), Q(1.3), R(6.8), S(4.2)

2. 

3. (i) 3 and 4 (ii) 2 and 3 (iii) 0 and 1

4. (i) 3.2 (ii) 6.5 (iii) 2.1

5. (i) 25.03 (ii) 7.01 (iii) 5.6

 Objective type questions

6. (iii) 1 and 2

7. (i) 4.5


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7th Maths : Term 2 Unit 1 : Number System : Exercise 1.4 | Questions with Answers, Solution | Number System | Term 2 Chapter 1 | 7th Maths


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