#### Chapters

Chapter 2: Rational Numbers

Chapter 3: Fractions (Including Problems)

Chapter 4: Decimal Fractions (Decimals)

Chapter 5: Exponents (Including Laws of Exponents)

Chapter 6: Ratio and Proportion (Including Sharing in a Ratio)

Chapter 7: Unitary Method (Including Time and Work)

Chapter 8: Percent and Percentage

Chapter 9: Profit, Loss and Discount

Chapter 10: Simple Interest

Chapter 11: Fundamental Concepts (Including Fundamental Operations)

Chapter 12: Simple Linear Equations (Including Word Problems)

Chapter 13: Set Concepts (Some Simple Divisions by Vedic Method)

Chapter 14: Lines and Angles (Including Construction of angles)

Chapter 15: Triangles

Chapter 16: Pythagoras Theorem

Chapter 17: Symmetry (Including Reflection and Rotation)

Chapter 18: Recognition of Solids (Representing 3-D in 2-D)

Chapter 19: Congruency: Congruent Triangles

Chapter 20: Mensuration

Chapter 21: Data Handling

Chapter 22: Probability

## Chapter 4: Decimal Fractions (Decimals)

### Selina solutions for Concise Mathematics Class 7 ICSE Chapter 4 Decimal Fractions (Decimals) Exercise 4 (A)

Convert the following into fraction in their lowest term: 3.75

Convert the following into fraction in their lowest term: 0.5

Convert the following into fraction in their lowest term: 2.04

Convert the following into fraction in their lowest term: 0.65

Convert the following into fraction in their lowest term: 2.405

Convert the following into fraction in their lowest term: 0.085

Convert the following into fraction in their lowest term: 8.025

Convert into decimal fractions `2 4/5`

Convert into decimal fractions `79/100`

Convert into decimal fractions `37/10000`

Convert into decimal fractions `7543/10^4`

Convert into decimal fractions `3/4`

Convert into decimal fractions `9 3/5`

Convert into decimal fractions `8 5/8`

Convert into decimal fractions `5 7/8`

Write the number of decimal places in: 0.4762

Write the number of decimal places in: 7.00349

Write the number of decimal places in: 8235.403

Write the number of decimal places in: 35.4

Write the number of decimal places in: 2.608

Write the number of decimal places in: 0.000879

Write the following decimals as word statements: 0.4, 0.9, 0.1

Write the following decimals as word statements: 1.9, 4.4, 7.5

Write the following decimal as word statement: 0.02, 0.56, 13.06

Write the following decimal as word statement: 0.005,0.207, 111.519

Write the following decimal as word statement: 0.8, 0.08, 0.008, 0.0008

Write the following decimal as word statement: 256.1, 10.22, 0.634

**Convert the given fraction into like a fraction:**

0.5, 3.62, 43.987 and 232.0037

**Convert the given fraction into like a fraction:**

215.78, 33.0006, 530.3 and 0.03569

### Selina solutions for Concise Mathematics Class 7 ICSE Chapter 4 Decimal Fractions (Decimals) Exercise 4 (B)

Add: 0.5 and 0.37

Add: 3.8 and 8.7

Add: 0.02, 0.008 and 0.309

Add: 0. 4136, 0. 3195 and 0.52

Add: 9.25, 3.4 and 6.666

Add: 3.007, 0.587 and 18.341

Add: 0.2, 0.02 and 2.0002

Add: 6.08, 60.8, 0.608 and 0.0608

Add: 29.03, 0.0003, 0.3 and 7.2

Add: 3.4, 2.025, 9.36 and 3.6221

**Subtract the first number from the second:**

5.4, 9.8

**Subtract the first number from the second:**

0.16, 4.3

**Subtract the first number from the second:**

0.82, 8.6

**Subtract the first number from the second:**

0.07, 8.43

**Subtract the first number from the second:**

2.237, 9.425

**Subtract the first number from the second:**

41.03, 59.46

**Subtract the first number from the second:**

3.92, 26.86

**Subtract the first number from the second:**

4.73, 8.5

**Subtract the first number from the second:**

12.63, 36.2

**Subtract the first number from the second:**

0.845, 3.71

Simplify: 28.796 -13.42 – 2.555

Simplify: 93.354 – 62.82 – 13.045

Simplify: 36 – 18.59 – 3.2

Simplify: 86 + 16.95 – 3.0042

Simplify: 32.8 – 13 – 10.725 +3.517

Simplify: 4000 – 30.51 – 753.101 – 69.43

Simplify: 0.1835 + 163.2005 – 25.9 – 100

Simplify: 38.00 – 30 + 200.200 – 0.230

Simplify: 555.555 + 55.555 – 5.55 – 0.555

Find the difference between 6.85 and 0.685.

Take out the sum of 19.38 and 56.025 then subtract it from 200.111.

Add 13.95 and 1.003; and from the result, subtract the sum of 2.794 and 6.2.

What should be added to 39.587 to give 80.375?

What should be subtracted from 100 to give 19.29?

What is the excess of 584.29 over 213.95?

Evaluate: (5.4 – 0.8) + (2.97 -1.462)

Evaluate: (6.25 + 0.36) - (17.2 – 8.97)

Evaluate: 9.001 + (3 - 2.462)

Evaluate: 879.4 – (87.94 – 8 .794)

What is the excess of 75 over 48.29?

If A = 237.98 and B = 83.47.

Find: (i) A - B (ii) B - A

The cost of one kg of sugar increases from 28.47 to 32.65. Find the increase in cost.

### Selina solutions for Concise Mathematics Class 7 ICSE Chapter 4 Decimal Fractions (Decimals) Exercise 4 (C)

Multiply: 0.87 by 10

Multiply: 2.948 by 100

Multiply: 6.4 by 1000

Multiply: 5.8 by 4

Multiply: 16.32 by 28

Multiply: 5.037 by 8

Multiply: 4.6 by 2.1

Multiply: 0.568 by 6.4

Multiply the number by 10, 100, 1000: 0.5

Multiply the number by 10, 100, 1000: 0.112

Multiply the number by 10, 100, 1000: 4.8

Multiply the number by 10, 100, 1000: 0.0359

Multiply the number by 10, 100, 1000: 16.27

Multiply the number by 10, 100, 1000: 234.8

Evaluate: 5.897 x 2.3

Evaluate: 0.894 x 87

Evaluate: 0.01 × 0.001

Evaluate: 0.84 × 2.2 × 4

Evaluate: 4.75 x 0.08 x 3

Evaluate: 2.4 × 3.5 × 4.8

Evaluate: 0.8 × 1.2 × 0.25

Evaluate: 0.3 × 0.03 × 0.003

Evaluate: 12.003 × (0.2)5

Divide: 54.9 by 10

Divide: 7.8 by 100

Divide: 324.76 by 1000

Divide: 12.8 by 4

Divide: 27.918 by 9

Divide: 4.672 by 8

Divide: 4.32 by 1.2

Divide: 7.644 by 1.4

Divide: 4.8432 by 0.08

**Divide the given number by 10, 100, 1000 and 10000 **

2.1

**Divide the given number by 10, 100, 1000 and 10000 **

8.64

**Divide the given number by 10, 100, 1000 and 10000 **

5.01

**Divide the given number by 10, 100, 1000 and 10000 **

0.0906

**Divide the given number by 10, 100, 1000 and 10000 **

0.125

**Divide the given number by 10, 100, 1000 and 10000 **

111.11

**Divide the given number by 10, 100, 1000 and 10000 **

0.848 x 3

**Divide the given number by 10, 100, 1000 and 10000**

4.906 x (0.2) ²

**Divide the given number by 10, 100, 1000 and 10000**

(1.2)² x(0.9)²

Evaluate: 9.75 ÷ 5

Evaluate: 4.4064 ÷ 4

Evaluate: 27.69 ÷ 30

Evaluate: 19.25 ÷ 25

Evaluate: 20.64 ÷ 16

Evaluate: 3.204 ÷ 9

Evaluate: 0.125 ÷ 25

Evaluate: 0.14616 ÷ 72

Evaluate: 0.6227 ÷ 1300

Evaluate: 257.894 ÷ 0.169

Evaluate: 6.3 ÷ (0.3)^{2}

Evaluate: 4.3 x 0.52 x 0.3

Evaluate: 3.2 x 2.5 x 0.7

Evaluate: 0.8 x 1.5 x 0.6

Evaluate: 0.3 x 0.3 x 0.3

Evaluate: 1.2 x 1.2 x 0.4

Evaluate: 0.4 x 0.04 x 0.004

Evaluate: 0.5 x 0.6 x 0.7

Evaluate: 0.5 x 0.06 x 0.007

Evaluate: (0.9)²

Evaluate: (0.6)² x 0.5

Evaluate: 0.3 x (0.5)^{2}

Evaluate: (0.4)³

Evaluate: (0.2)^{3} x 5

Evaluate: (0.2)3 x 0.05

Find the cost of 36.75 kg wheat at the rate of â‚¹12.80 per kg.

The cost of a pen is â‚¹56.15. Find the cost of 16 such pens.

Evaluate: 0.0072 ÷ 0.06

Evaluate: 0.621 ÷ 0.3

Evaluate: 0.0532 ÷ 0.005

Evaluate: 0.01162 ÷ 0.14

Evaluate: (7.5 x 40.4) ÷ 25

Evaluate: 2.1 ÷ (0.1 x 0.1)

Fifteen indentical articles weigh 31.50 kg. Find the weight of each article.

The product of two numbers is 211.2. If one of these two numbers is 16.5, find the other number.

One dozen identical articles cost â‚¹45.96. Find the cost of each article.

### Selina solutions for Concise Mathematics Class 7 ICSE Chapter 4 Decimal Fractions (Decimals) Exercise 4 (D)

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

3 ÷ 8

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

8 ÷ 3

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

6 ÷ 5

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

5 ÷ 6

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

12.5 ÷ 4

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

23 ÷ 0.7

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

42 ÷ 9 = 4.666...

**Find whether the given division forms a terminating decimal or a non-terminating decimal:**

0.56 ÷ 0.11

**Express as recurring decimal: **`1 1/3`

**Express as recurring decimal: **`10/11`

**Express as recurring decimal: **`5/6`

**Express as recurring decimal: **`2/13`

**Express as recurring decimal: **`1/9`

**Express as recurring decimal: **`17/90`

**Express as recurring decimal: **`5/18`

**Express as recurring decimal: **`7/12`

**Convert into vulgar fraction: **`0.bar3`

**Convert into vulgar fraction: **`0.bar8`

**Convert into vulgar fraction: **`4.bar4`

**Convert into vulgar fraction: **`23.bar7`

**Convert into vulgar fraction: **`0.bar35`

**Convert into vulgar fraction: **`2.bar23`

**Convert into vulgar fraction: **`1.bar28`

**Convert into vulgar fraction: **`5.bar234`

**Convert into vulgar fraction: **`0.3bar7`

**Convert into vulgar fraction: **`0.2bar45`

**Convert into vulgar fraction: **`0.68bar5`

**Convert into vulgar fraction: **`0.4bar42`

### Selina solutions for Concise Mathematics Class 7 ICSE Chapter 4 Decimal Fractions (Decimals) Exercise 4 (E)

Round off: 0 .07, 0.112, 3.59, 9.489 to the nearest tenths.

Round off: 0.627, 100.479, 0 065 and 0.024 to the nearest hundredths.

Round off: 4.83,0.86,451 .943 and 9.08 to the nearest whole number.

**Simplify, and write your answer correct to the nearest hundredths: **

18 .35 x 1.2

**Simplify, and write your answer correct to the nearest hundredths: **

62.89 x 0.02

Write the number of significant figures (digits) in 35.06.

Write the number of significant figures (digits) in 0.35.

Write the number of significant figures (digits) in 7.0068.

Write the number of significant figures (digits) in 19 .0.

Write the number of significant figures (digits) in 0.0062.

Write the number of significant figures (digits) in 0 4.2 x 0.6

Write the number of significant figures (digits) in 0.08 x 25.

Write the number of significant figures (digits) in 3.6 ÷ 0.12.

Write 35.869,0 008426,4.952 and 382.7, correct to three significant figures.

Write 60.974. 2.8753, 0.001789 and 400.04, correct to four significant figure.

Write 14.29462, 19.2, 46356.82 and 69, correct to five significant figures.

### Selina solutions for Concise Mathematics Class 7 ICSE Chapter 4 Decimal Fractions (Decimals) Exercise 4 (F)

The weight of an object is 3 .06 kg. Find the total weight of 48 similar objects**.**

Find die cost of 17.5 m cloth at the rate of Rs. 112.50 per meter.

One kilogram of oil costs Rs. 73.40. Find the cost of 9.75 kilograms of oil.

Total weight of 8 identical objects is 51.2 kg. Find the weight of each object.

18.5 m of cloth costs Rs. 666. Find the cost of 3.8 m cloth.

Find die value of: 0.5 of Rs. 7.60 + 1.62 of Rs. 30

Find die value of: 2.3 of 7.3 kg + 0.9 of 0.48 kg

Find die value of: 6.25 of 8.4 – 4.7 of 3.24

Find die value of: 0.98 of 235 – 0 .09 of 3.2

Evaluate: 5.6 – 1 .5 of 3.4

Evaluate: 4.8 ÷ 0.04 of 5

Evaluate: 0.72 of 80 ÷ 0.2

Evaluate: 0.72 ÷ 80 of 0.2

Evaluate: 6.45 + (3.9 – 1.75)

Evaluate: 0.12 of(0.104 – 0.02)+ 0.36 x 0.5

## Chapter 4: Decimal Fractions (Decimals)

## Selina solutions for Concise Mathematics Class 7 ICSE chapter 4 - Decimal Fractions (Decimals)

Selina solutions for Concise Mathematics Class 7 ICSE chapter 4 (Decimal Fractions (Decimals)) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Mathematics Class 7 ICSE solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Concise Mathematics Class 7 ICSE chapter 4 Decimal Fractions (Decimals) are Concept for Multiplication, Division of Decimal Numbers, Concept of Decimal Numbers.

Using Selina Class 7 solutions Decimal Fractions (Decimals) exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 7 prefer Selina Textbook Solutions to score more in exam.

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