Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7th
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Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide chapter 1 - Number System [Latest edition]

Chapters

Class 7th Mathematics Term 1 Answers Guide - Shaalaa.com
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Chapter 1: Number System

Exercise 1.1Exercise 1.2Exercise 1.3Exercise 1.4Exercise 1.5Exercise 1.6
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Exercise 1.1 [Pages 9 - 10]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide Chapter 1 Number SystemExercise 1.1 [Pages 9 - 10]

Fill in the blanks

Exercise 1.1 | Q 1. (i) | Page 9

(−30) + ____ = 60

Exercise 1.1 | Q 1. (ii) | Page 9

(−5) + ___ = −100

Exercise 1.1 | Q 1. (iii) | Page 9

(−52) + (−52) = ____

Exercise 1.1 | Q 1. (iv) | Page 9

____ + (−22) = 0

Exercise 1.1 | Q 1. (v) | Page 9

____ + (−70) = 70

Exercise 1.1 | Q 1. (vi) | Page 9

20 + 80 + ____ = 0

Exercise 1.1 | Q 1. (vii) | Page 9

75 + (−25) = _____

Exercise 1.1 | Q 1. (viii) | Page 9

171 + _____ = 0

Exercise 1.1 | Q 1. (ix) | Page 9

[(−3) + (−12)] + (−77) = ______ + [(−12) + (−77)]

Exercise 1.1 | Q 1. (x) | Page 9

(−42) + [ ____ + (−23)] = [ ____ + 15] + ____

Say true or false

Exercise 1.1 | Q 2. (i) | Page 9

The additive inverse of (−32) is (−32)

  • True

  • False

Exercise 1.1 | Q 2. (ii) | Page 9

(−90) + (−30) = 60

  • True

  • False

Exercise 1.1 | Q 2. (iii) | Page 9

(−125) + 25 = −100

  • True

  • False

Exercise 1.1 | Q 3. (i) | Page 9

Add the following

8 and −12 using number line

Exercise 1.1 | Q 3. (ii) | Page 9

Add the following

(−3) and (−5) using number line

Exercise 1.1 | Q 3. (iii) | Page 9

Add the following

(−100) + (−10)

Exercise 1.1 | Q 3. (iv) | Page 9

Add the following

20 + (−72)

Exercise 1.1 | Q 3. (v) | Page 9

Add the following

82 + (−75)

Exercise 1.1 | Q 3. (vi) | Page 9

Add the following

−48 + (−15)

Exercise 1.1 | Q 3. (vii) | Page 9

Add the following

−225 + (−63)

Exercise 1.1 | Q 4 | Page 9

Thenmalar appeared for competitive exam which has negative scoring of 1 mark for each incorrect answer. In paper I she answered 25 questions incorrectly and in paper II, 13 questions incorrectly. Find the total reduction of marks

Exercise 1.1 | Q 5 | Page 9

In a quiz competition, Team A scored +30, −20, 0 and team B scored −20, 0, +30 in three successive rounds. Which team will win? Can we say that we can add integers in any order?

Exercise 1.1 | Q 6 | Page 9

Are (11 + 7) + 10 and 11 + (7 + 10) equal? Mention the property.

Exercise 1.1 | Q 7 | Page 9

Find 5 pairs of integers that add up to 2

Objective type questions

Exercise 1.1 | Q 8 | Page 10

The temperature at 12 noon at a certain place was 18° above zero. If it decreases at the rate of 3° per hour at what time if would be 12° below zero?

  • 12 midnight

  • 12 noon

  • 10 am

  • 10 pm

Exercise 1.1 | Q 9 | Page 10

Identify the problem with negative numbers as its answer:

  • −9 + (−5) + 6

  • 18 + (–12) – 6

  • −4 + 2 + 10

  • 10 + (– 4) + 8

Exercise 1.1 | Q 10 | Page 10

(−10) + (+7) = _____

  • +3

  • −3

  • −17

  • +17

Exercise 1.1 | Q 11 | Page 10

(−8) + 10 + (−2) = _____

  • 2

  • 8

  • 0

  • 20

Exercise 1.1 | Q 12 | Page 10

20 + (−9) + 9 = _____

  • 20

  • 29

  • 11

  • 38

Exercise 1.2 [Pages 14 - 15]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide Chapter 1 Number SystemExercise 1.2 [Pages 14 - 15]

Fill in the blanks

Exercise 1.2 | Q 1. (i) | Page 14

−44 + ____ = −88

Exercise 1.2 | Q 1. (ii) | Page 14

_____ – 75 = – 45

Exercise 1.2 | Q 1. (iii) | Page 14

_____ – (+50) = – 80

Say true or false

Exercise 1.2 | Q 2. (i) | Page 14

(– 675) – (– 400) = –1075

  • True

  • False

Exercise 1.2 | Q 2. (ii) | Page 14

15 – (–18) is the same as 15 + 18

  • True

  • False

Exercise 1.2 | Q 2. (iii) | Page 14

(– 45) – (– 8) = (– 8) – (– 45)

  • True

  • False

Exercise 1.2 | Q 3. (i) | Page 14

Find the value of –3 – (– 4) using number line

Exercise 1.2 | Q 3. (ii) | Page 14

Find the value of 7 – (–10) using number line

Exercise 1.2 | Q 3. (iii) | Page 14

Find the value of 35 – (– 64)

Exercise 1.2 | Q 3. (iv) | Page 14

Find the value of –200 – (+100)

Exercise 1.2 | Q 4 | Page 14

Kabilan was having 10 pencils with him. He gave 2 pencils to Senthil and 3 to Karthik. Next day his father gave him 6 more pencils, from that he gave 8 to his sister. How many pencils are left with him?

Exercise 1.2 | Q 5 | Page 15

A lift is on the ground floor. If it goes 5 floors down and then moves up to 10 floors from there. Then in which floor will the lift be?

Exercise 1.2 | Q 6 | Page 15

When Kala woke up, her body temperature was 102°F. She took medicine for fever. After 2 hours it was 2°F lower. What was her temperature then?

Exercise 1.2 | Q 7 | Page 15

What number should be added to (−17) to get −19?

Exercise 1.2 | Q 8 | Page 15

A student was asked to subtract (−12) from −47. He got −30. Is he correct? Justify.

Objective type questions

Exercise 1.2 | Q 9 | Page 15

(–5) – (–18) = _____

  • 23

  • – 13

  • 13

  • – 23

Exercise 1.2 | Q 10 | Page 15

(–100) – 0 + 100 = _____

  • 200

  • 0

  • 100

  • – 200

Exercise 1.3 [Pages 21 - 22]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide Chapter 1 Number SystemExercise 1.3 [Pages 21 - 22]

Fill in the blanks

Exercise 1.3 | Q 1. (i) | Page 21

−80 × ____ = −80

Exercise 1.3 | Q 1. (ii) | Page 21

(−10) × ____ = 20

Exercise 1.3 | Q 1. (iii) | Page 21

100 × ___ = −500

Exercise 1.3 | Q 1. (iv) | Page 21

____ × (−9) = −45

Exercise 1.3 | Q 1. (v) | Page 21

_____ × 75 = 0

Say true or false

Exercise 1.3 | Q 2. (i) | Page 21

(−15) × 5 = 75

  • True

  • False

Exercise 1.3 | Q 2. (ii) | Page 21

(−100) × 0 × 20 = 0

  • True

  • False

Exercise 1.3 | Q 2. (iii) | Page 21

8 × (−4) = 32

  • True

  • False

Exercise 1.3 | Q 3. (i) | Page 21

What will be the sign of the product of the following:

16 times of negative integer

Exercise 1.3 | Q 3. (ii) | Page 21

What will be the sign of the product of the following:

29 times of negative integer

Exercise 1.3 | Q 4. (i) | Page 21

Find the product of (−35) × 22

Exercise 1.3 | Q 4. (ii) | Page 21

Find the product of (−10) × 12 × (−9)

Exercise 1.3 | Q 4. (iii) | Page 21

Find the product of (−9) × (−8) × (−7) × (−6)

Exercise 1.3 | Q 4. (iv) | Page 21

Find the product of (−25) × 0 × 45 × 90

Exercise 1.3 | Q 4. (v) | Page 21

Find the product of (−2) × (+50) × (−25) × 4

Exercise 1.3 | Q 5. (i) | Page 21

Check the following for equality and if they are equal, mention the property.

(8 – 13) × 7 and 8 – (13 × 7)

Exercise 1.3 | Q 5. (ii) | Page 21

Check the following for equality and if they are equal, mention the property.

[(– 6) – (+8)] × (– 4) and (– 6) – [8 × (– 4)]

Exercise 1.3 | Q 5. (iii) | Page 21

Check the following for equality and if they are equal, mention the property.

3 × [(−4) + (−10)] and [3 × (−4) + 3 × (−10)]

Exercise 1.3 | Q 6 | Page 21

During summer, the level of the water in a pond decreases by 2 inches every week due to evaporation. What is the change in the level of the water over a period of 6 weeks?

Exercise 1.3 | Q 7 | Page 21

Find all possible pairs of integers that give a product of −50

Objective type questions

Exercise 1.3 | Q 8 | Page 21

Which of the following expressions is equal to −30

  • −20 – (−5 × 2)

  • (6 × 10) – (6 × 5)

  • (2 × 5) + (4 × 5)

  • (−6) × (+5)

Exercise 1.3 | Q 9 | Page 21

Which property is illustrated by the equation: (5 × 2) + (5 × 5) = 5 × (2 + 5)

  • commutative

  • closure

  • distributive

  • associative

Exercise 1.3 | Q 10 | Page 22

11 × (−1) = ______

  • −1

  • 0

  • +1

  • −11

Exercise 1.3 | Q 11 | Page 22

(−12) × (−9) = _______

  • 108

  • −108

  • +1

  • −1

Exercise 1.4 [Pages 24 - 25]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide Chapter 1 Number SystemExercise 1.4 [Pages 24 - 25]

Fill in the blanks

Exercise 1.4 | Q 1. (i) | Page 24

(−40) ÷ ____ = 40

Exercise 1.4 | Q 1. (ii) | Page 24

25 ÷ _____ = −5

Exercise 1.4 | Q 1. (iii) | Page 24

_____ ÷ (−4) = 9

Exercise 1.4 | Q 1. (iv) | Page 24

(−62) ÷ (−62) = _____

Say true or false

Exercise 1.4 | Q 2. (i) | Page 24

(−30) ÷ (−6) = −6

  • True

  • False

Exercise 1.4 | Q 2. (ii) | Page 24

(−64) ÷ (−64) is 0

  • True

  • False

Exercise 1.4 | Q 3. (i) | Page 24

Find the values of (−75) ÷ 5

Exercise 1.4 | Q 3. (ii) | Page 24

Find the values of (−100) ÷ (−20)

Exercise 1.4 | Q 3. (iii) | Page 24

Find the values of 45 ÷ (−9)

Exercise 1.4 | Q 3. (iv) | Page 24

Find the values of (−82) ÷ 82

Exercise 1.4 | Q 4 | Page 24

The product of two integers is −135. If one number is −15. Find the other integer

Exercise 1.4 | Q 5 | Page 24

In 8 hours duration, with uniform decrease in temperature, the temperature dropped 24°C. How many degrees did the temperature drop each hour?

Exercise 1.4 | Q 6 | Page 24

An elevator descends into a mine shaft at the rate of 5 m/min. If the descent starts from 15 m above the ground level, how long will it take to reach −250 m?

Exercise 1.4 | Q 7 | Page 24

A person lost 4800 calories in 30 days. If the calory loss is uniform, calculate the loss of calory per day

Exercise 1.4 | Q 8 | Page 24

Given 168 × 32 = 5376 then, find (−5376) ÷ (−32)

Exercise 1.4 | Q 9 | Page 25

How many −4’s are there is (−20)?

Exercise 1.4 | Q 10 | Page 25

(−400) divided into 10 equal parts gives _____

Objective type questions

Exercise 1.4 | Q 11 | Page 25

Which of the following does not represent an integer?

  • 0 ÷ (−7)

  • 20 ÷ (−4)

  • (−9) ÷ 3

  • 12 ÷ 5

Exercise 1.4 | Q 12 | Page 25

(−16) ÷ 4 is the same as

  • −(−16 ÷ 4)

  • −(16) ÷ (−4)

  • 16 ÷ (−4)

  • −4 ÷ −16

Exercise 1.4 | Q 13 | Page 25

(−200) ÷ 10 is

  • 20

  • −20

  • −190

  • 210

Exercise 1.4 | Q 14 | Page 25

The set of integers is not closed under

  • Addition

  • Subtraction

  • Multiplication

  • Division

Exercise 1.5 [Pages 28 - 29]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide Chapter 1 Number SystemExercise 1.5 [Pages 28 - 29]

Exercise 1.5 | Q 1 | Page 28

One night in Kashmir, the temperature is −5°C. Next day the temperature is 9°C. What is the increase in temperature?

Exercise 1.5 | Q 2. (i) | Page 28

An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:

5 electrons and 3 protons → 

Exercise 1.5 | Q 2. (ii) | Page 28

An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:

6 protons and 6 electrons →

Exercise 1.5 | Q 2. (iii) | Page 28

An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:

9 protons and 12 electrons →

Exercise 1.5 | Q 2. (iv) | Page 28

An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:

4 protons and 8 electrons →

Exercise 1.5 | Q 2. (v) | Page 28

An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:

7 protons and 6 electrons →

Exercise 1.5 | Q 3. (i) | Page 28

Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:

−275°C

Exercise 1.5 | Q 3. (ii) | Page 28

Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:

45°C

Exercise 1.5 | Q 3. (iii) | Page 28

Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:

−400°C

Exercise 1.5 | Q 3. (iv) | Page 28

Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:

−273°C 

Exercise 1.5 | Q 4 | Page 28

Find the amount that is left in the student’s bank account, if he has made the following transaction in a month. His initial balance is ₹ 690

(i) Deposit (+) of ₹ 485

(ii) Withdrawal (−) of ₹ 500

(iii) Withdrawal (−) of ₹ 350

(iv) Deposit (+) of ₹ 89

(v) If another ₹ 300 was withdrawn, what would the balance be?

Exercise 1.5 | Q 5. (i) | Page 28

A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following.

If Tamizh Nambi wrote 5 pages per day, how many day’s work did he lose?

Exercise 1.5 | Q 5. (ii) | Page 28

A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following.

If four pages contained 1800 characters, (letters) how many characters were lost?

Exercise 1.5 | Q 5. (iii) | Page 28

A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following:

If Tamizh Nambi is paid ₹ 250 for each page produced, how much money did he lose?

Exercise 1.5 | Q 5. (iv) | Page 29

A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following:

If Kavimaan helps Tamizh Nambi and they are able to produce 7 pages per day, how many days will it take to recreate the work lost?

Exercise 1.5 | Q 5. (v) | Page 29

A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following:

Tamizh Nambi pays Kavimann ₹ 100 per page for his help. How much money does Kavimaan receive?

Exercise 1.5 | Q 6 | Page 29

Add 2 to me. Then multiply by 5 and subtract 10 and divide new by 4 and I will give you 15! Who am I?

Exercise 1.5 | Q 7 | Page 29

Kamatchi, a fruit vendor sells 30 apples and 50 pomegranates. If she makes a profit of ₹ 8 per apple and loss ₹ 5 per pomegranate. What will be her overall profit or loss?

Exercise 1.5 | Q 8 | Page 29

During a drought, the water level in a dam fell 3 inches per week for 6 consecutive weeks. What was the change in the water level in the dam at the end of this period?

Exercise 1.5 | Q 9 | Page 29

Buddha was born in 563 BC (BCE) and died in 483 BC (BCE). Was he alive in 500 BC (BCE)? and find his life time. (Source: Compton’s Encyclopedia)

Exercise 1.6 [Pages 29 - 31]

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide Chapter 1 Number SystemExercise 1.6 [Pages 29 - 31]

Miscellaneous Practice problems

Exercise 1.6 | Q 1 | Page 29

What should be added to −1 to get 10?

Exercise 1.6 | Q 2 | Page 29

−70 + 20 = `square` − 10

Exercise 1.6 | Q 3 | Page 29

Subtract 94860 from (−86945)

Exercise 1.6 | Q 4 | Page 29

Find the value of (−25) + 60 + (−95) + (−385)

Exercise 1.6 | Q 5 | Page 29

Find the sum of (−9999) (−2001) and (−5999)

Exercise 1.6 | Q 6 | Page 29

Find the product of (−30) × (−70) × 15

Exercise 1.6 | Q 7 | Page 29

Divide (−72) by 8

Exercise 1.6 | Q 8 | Page 29

Find two pairs of integers whose product is +15

Exercise 1.6 | Q 9. (i) | Page 29

Check the following for equality

(11 + 7) + 10 and 11 + (7 + 10)

Exercise 1.6 | Q 9. (ii) | Page 29

Check the following for equality

(8 – 13) × 7 and 8 – (13 × 7)

Exercise 1.6 | Q 9. (iii) | Page 29

Check the following for equality

[(−6) – (+8)] × (−4) and (−6) – [8 × (−4)]

Exercise 1.6 | Q 9. (iv) | Page 29

Check the following for equality

3 × [(−4) + (−10)] and [3 × (−4) + 3 × (−10)]

Exercise 1.6 | Q 10 | Page 29

Kalaivani had ₹ 5000 in her bank account on 01.01.2018. She deposited ₹ 2000 in January and withdrew ₹ 700 in February. What was Kalaivani’s bank balance on 01.04.2018, if she deposited ₹ 1000 and withdraw ₹ 500 in March?

Exercise 1.6 | Q 11 | Page 29

The price of an item x increases by ₹ 10 every year and an item y decreases by ₹ 15 every year. If in 2018, the price of x is ₹ 50 and y is ₹ 90, then which item will be costlier in the year 2020.

Exercise 1.6 | Q 12 | Page 30

Match the statements in Column A and Column B

S.No. Column A Column B
1. For any two integers 72 and 108, 72 + 108 is also an integer. (a) Distributive property of multiplication over addition.
2. For any three integers 68, 25 and 99
68 × (25 + 99) = (68 × 25) + (68 × 99)
(b) Multiplicative identity
3. 0 + (−138) = (−138) = (−138) + 0 (c) Commutative property under
4. For any two integers (−5) and 10
(−5) × 10 = 10 × (−5)
(d) Closed under addition.
5. 1 × (−1098) = (–1098) = (–1098) × 1 (e) Additive identity.

Challenge Problems

Exercise 1.6 | Q 13. (i) | Page 30

Say true or false.

The sum of a positive integer and a negative integer is always a positive integer

  • True

  • False

Exercise 1.6 | Q 13. (ii) | Page 30

Say true or false.

The sum of two integers can never be zero

  • True

  • False

Exercise 1.6 | Q 13. (iii) | Page 30

Say true or false.

The product of two negative integers is a positive integer

  • True

  • False

Exercise 1.6 | Q 13. (iv) | Page 30

Say true or false.

The quotient of two integers having opposite sign is a negative integer

  • True

  • False

Exercise 1.6 | Q 13. (v) | Page 30

Say true or false.

The smallest negative integer is −1

  • True

  • False

Exercise 1.6 | Q 14 | Page 30

An integer divided by 7 gives a result −3. What is that integer?

Exercise 1.6 | Q 15 | Page 30

Replace the question mark with suitable integer in the equation

72 + (−5) − ? = 72

Exercise 1.6 | Q 16 | Page 30

Can you give 10 pairs of single digit integers whose sum is zero?

Exercise 1.6 | Q 17 | Page 30

If P = −15 and Q = 5 find (P – Q) ÷ (P + Q)

Exercise 1.6 | Q 18. (i) | Page 30

If the letters in the English alphabets A to M represent the number from 1 to 13 respectively and N represents 0 and the letters O to Z correspond from −1 to −12, find the sum of integers for the names given below.
For example,
MATH → Sum → 13 + 1 – 6 + 8 = 16
YOUR NAME

Exercise 1.6 | Q 18. (ii) | Page 30

If the letters in the English alphabets A to M represent the number from 1 to 13 respectively and N represents 0 and the letters O to Z correspond from −1 to −12, find the sum of integers for the names given below.
For example,
MATH → Sum → 13 + 1 – 6 + 8 = 16
SUCCESS

Exercise 1.6 | Q 19 | Page 30

From a water tank 100 litres of water is used every day. After 10 days there is 2000 litres of water in the tank. How much water was there in the tank before 10 days?

Exercise 1.6 | Q 20 | Page 30

A dog is climbing down into a well to drink water. In each jump, it goes down 4 steps. The water level is in 20th step. How many jumps does the dog take to reach the water level?

Exercise 1.6 | Q 21 | Page 31

Kannan has a fruit shop. He sells 1 dozen bananas at a loss of ₹ 2 each because it may get rotten next day. What is his loss?

Exercise 1.6 | Q 22 | Page 31

A submarine was situated at 650 feet below the sea level. If it descends 200 feet, what is its new position?

Exercise 1.6 | Q 23 | Page 31

In a magic square given below each row, column and diagonal should have the same sum. Find the values of x, y, and z

1 −10 x
y −3 −2
−6 4 z

Chapter 1: Number System

Exercise 1.1Exercise 1.2Exercise 1.3Exercise 1.4Exercise 1.5Exercise 1.6
Class 7th Mathematics Term 1 Answers Guide - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide chapter 1 - Number System

Tamil Nadu Board Samacheer Kalvi solutions for Class 7th Mathematics Term 1 Answers Guide chapter 1 (Number System) 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 Tamil Nadu Board of Secondary Education Class 7th Mathematics Term 1 Answers Guide solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Tamil Nadu Board Samacheer Kalvi textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 7th Mathematics Term 1 Answers Guide chapter 1 Number System are Concept of Integers, Representation of Integers on the Number Line, Concept for Ordering of Integers, Addition of Integers, Addition of Integers on Number line, Subtraction of Integers, Properties of Addition and Subtraction of Integers, Multiplication of a Positive and a Negative Integers, Multiplication of Two Negative Integers, Product of Three Or More Negative Integers, Properties of Multiplication of Integers, Closure Property of Multiplication of Integers, Closure Property of Multiplication of Integers, Associative Property of Multiplication of Integers, Distributive Property of Multiplication of Integers, Multiplicative Identity of Integers, Division of Integers, Properties of Division of Integers, Statement Problems on Integers Using All Fundamental Operations..

Using Tamil Nadu Board Samacheer Kalvi Class 7th solutions Number System 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 Tamil Nadu Board Samacheer Kalvi Solutions are important questions that can be asked in the final exam. Maximum students of Tamil Nadu Board of Secondary Education Class 7th prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exam.

Get the free view of chapter 1 Number System Class 7th extra questions for Class 7th Mathematics Term 1 Answers Guide and can use Shaalaa.com to keep it handy for your exam preparation

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