Category: Class 4

Students can download 4th Maths Term 1 Chapter 2 Numbers Ex 2.1 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 2 Numbers Ex 2.1

A. Write the following number in words:
(i) 1006 = ____________
(ii) 6327 = ____________
(iii) 9097 = ____________
(iv) 10,000 = ____________
(v) 8906 = ____________
Answer:
(i) 1006 = One thousand and six
(ii) 6327 = six thousand three hundred and twenty seven
(iii) 9097 = nine thousand and ninety seven
(iv) 10,000 = ten thousand
(V) 8906 = eight thousand nine hundred and six

B. Write the numeral for each of the following.
(i) Seven thousand and sixty four = ________
(ii) Nine thousand three hundred and forty = ________
(iii) Five thousand six hundred and seventy three = ________
(iv) Ten thousand = ________
(v) Four thousand three hundred and six = ________
Answer:
(i) Seven thousand and sixty four = 7064
(ii) Nine thousand three hundred and forty = 9340
(iii) Five thousand six hundred and seventy three = 5673
(iv) Ten thousand = 10,000
(v) Four thousand three hundred and six = 4306

C. Answer the following Questions
(i) Ramu went to a bank to deposit Is. 7500. In the deposit form, he has to fill up the amount in words. Could you please help him?
Answer:
Rupees seven thousand and five hundred only.

(ii) Find the sum of the greatest two digit and the greatest three digit numbers. Write the number names of that sum.
Answer:
2 – digit greatest number = 99
3 – digit greatest number = 999
Sum = 99 + 999
= 1098
1098 = one thousand and ninety eight

Students can download 4th Maths Term 1 Chapter 1 Geometry InText Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry InText Questions

Activity (Text Book Page No. 8)

Measure the radius and diameter of the following circles.

Answer:

Radius = 1 cm
Diameter = 2 cm

Radius = 1.7 cm
Diameter = 3.4 cm

Radius = 0.7 cm
Diameter = 1.4 cm

Activity (Text Book Page No. 9)

Measure the sides arid identify the names of different objects and find the differences among them and fill the table given below.
(a) Chessboard
(b) Postcard
(c) Window
(d) Paper
(e) Newspaper
(f) Maths Kit box.
(g) Kite

Answer:

Activity (Text Book Page No. 12)

Arrange the tangram pieces to from pictures.

Answer:

Activity (Text Book Page No. 14)

Which tile will you choose to fill the space given below and find how many tiles are needed to fill the given space.

(a)

(b)

(c)

Answer:
(a)

Perimeter = 2 + 3 + 2 + 3 = 10 cm
No of tiles needed = 5

Activity (Text Book Page No. 14 & 15)

Fill the table given below by fixing the appropriate tile in the space given below


Answer:

Activity (Text Book Page No. 16)

a. Form the cube by folding the nets given below.
Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

b. Use these nets to form cuboids.

Question 1.

Answer:

Question 2.

Answer:

c. Make a cone with semicircle.

Answer:

d. Make a cylinder using rectangle sheet.

Answer:

Find out 2D and 3D objects from the given pictures. (Text Book Page No. 18)

Answer:

 

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.7 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.7

A. Choose the correct answer :

(i) A cuboid has ________ edges.
(a) 6
(b) 8
(c) 12
Answer:
12

(ii) The shape of a dice is like a ________.
(a) cuboid
(b) cube
(c) sphere
Answer:
(b) cube

(iii) A ________ has a curved surface and two plane faces.
(a) cylinder
(b) cone
(c) sphere
Answer:
(a) cylinder

(iv) I have one vertex and one plane face. I am a ________.
(a) cone
(b) cylinder
(c) sphere
Answer:
(a) cone

(v) A cube has ________ vertices.
(a) 8
(b) 12
(c) 6
Answer:
(a) 8

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.6 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.6

A. Fill the following diagrams with appropriate tiles :

Answer:

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.5 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.5

A. Find the perimeter of the following figures

i.

Answer:
Perimeter = 8 + 3 + 5 + 6
= 22 cm

ii.

Answer:
Perimeter = 10 + 5 + 2 + 7
= 24 cm

iii.

Answer:
Perimeter = 7 + 4 + 7 + 4
= 22 cm

iv.

Answer:
Perimeter = 11 + 11 + 11 + 11
= 44 cm

v.

Answer:
Perimeter = 10 + 5 + 10 + 5
= 30 cm

B. Solve the following

Question 1.
A side of a square-shaped sandbox in Gandhi Park measures 30 cm. Determine the perimeter of the sand box.
Answer:
Side of a sand box = 30cm
Perimeter = 30 + 30 + 30 + 30
= 120 cm

Question 2.
Find the perimeter of a rectangle, whose sides are 12 cm and 8 cm.
Answer:
Side of a rectangle are 12 cm and 8 cm.
Perimeter = 12 + 8 + 12 + 8
= 40cm

Question 3.
Find the perimeter of the triangle, whose sides are 13 cm, 5 cm and 14 cm.
Answer:
Length of sides are 13cm, 5cm and 14cm
Perimeter = 13 + 5 + 14
= 32cm

Question 4.
The adjacent sides of a parallelogram are 6 cm and 7 cm. What is the perimeter of the parallelogram?
Answer:
Adjacent sides of a parallelogram are 6cm and 7cm.
Perimeter = 6 + 7 + 6 + 7
= 26cm

Question 5.
The sides of a trapezoid measures 8 cm, 7 cm, 4 cm and 5 cm respectively. What is the perimeter of the trapezoid?
Answer:
Side of a trapezium are 8cm, 7cm, 4cm and 5cm.
Perimeter = 8 + 7 + 4 + 5
= 24cm

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.4 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.4

A. Fill in the blanks.

(i) All the radii of a circle are ________ .
Answer:
equal

(ii) The ________ is the longest chord of a circle.
Answer:
diameter

(iii) A line segment joining any point on the circle to its center is called ________ the of the circle.
Answer:
radius

(iv) A line segment with its end points on the circle is called a ________.
Answer:
chord

(v) Twice the radius is ________.
Answer:
diameter

B. Find the diameter of the circle

(i) Radius = 10 cm
(ii) Radius = 8 cm
(iii) Radius = 6 cm
Answer:
(i) Radius = 10 cm
Diameter = 2 × radius = 2 × 10
Diameter = 20 cm

(ii) Radius = 8 cm
Diameter = 2 × radius = 2 × 8
Diameter = 16 cm

(iii) Radius = 6 cm
Diameter = 2 × radius = 2 × 6
Diameter = 12 cm

C. Find the radius of the circle.

(i) Diameter = 24 cm
(ii) Diameter = 30 cm
(iii) Diameter = 76 cm
Answer:
(i) Diameter = 24 cm

(ii) Diameter = 30 cm

(iii) Diameter = 76 cm

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.3 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.3

Draw circles for the following measurements.
a. 6 cm
b. 5.5 cm
c. 8 cm
d. 6.8 cm
e. 8.6 cm
Answer:
a. Draw a circle of radus 6 cm using a compass.
Steps:
1. Take a compass and fix the pencil in it.
2. Measure 6 cm on the compass using ruler.
3. Place the needle of the compass and keep it fixed on the paper.
4. Move the pencil around it in any direction till your return to the starting point.

b. Draw a circle of radus 5.5 cm using a compass.
Steps:
1. Take a compass and fix the pencil in it.
2. Measure 5.5 cm on the compass using ruler.
3. Place the needle of the compass and keep it fixed on the paper.
4. Move the pencil around it in any direction till your return to the starting point.

c. Draw a circle of radus 8 cm using a compass.
Steps:
1. Take a compass and fix the pencil in it.
2. Measure 8 cm on the compass using ruler.
3. Place the needle of the compass and keep it fixed on the paper.
4. Move the pencil around it in any direction till your return to the starting point.

d. Draw a circle of radus 6.8 cm using a compass.
Steps:
1. Take a compass and fix the pencil in it.
2. Measure 6.8 cm on the compass using ruler.
3. Place the needle of the compass and keep it fixed on the paper.
4. Move the pencil around it in any direction till your return to the starting point.

e. Draw a circle of radus 8.6 cm using a compass.
Steps:
1. Take a compass and fix the pencil in it.
2. Measure 8.6 cm on the compass using ruler.
3. Place the needle of the compass and keep it fixed on the paper.
4. Move the pencil around it in any direction till your return to the starting point.

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.2 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.2

A. Fill in the blanks.

(i) All closed four sided figures are called _______.
Answer:
quadrilateral

(ii) A _______ has four equal sides and equal diagonals.
Answer:
square

(iii) The opposite sides of a _______ are equal.
Answer:
rectangle.

(iv) A _______ has no sides.
Answer:
circle

(v) Diagonals are equal in _______ and _______.
Answer:
square, rhombus

B. Write the name of the sides and digonals.

Answer:

Sides = AB, BC, CD, AD
Diagonals = AC, BD

Sides = WX, XY, YZ, ZW
Diagonals = WY, XZ

Sides = PQ, QR, RS, SP
Diagonals = PR, QS

Sides = EF, FG, GH, EH
Diagonals = EG, FH

Students can download 4th Maths Term 1 Chapter 1 Geometry Ex 1.1 Questions and Answers, Notes, Samacheer Kalvi 4th Maths Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus, helps students complete homework assignments and to score high marks in board exams.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.1

A. Write down the names of shape in the following pictures.

(i)

Answer:
Circle, square, rectangle, triangle

(ii)

Answer:
Square, circle, triangle, rectangle

B.
(i) Write the number of squares and triangles in the given picture.

Square _______
Triangle _______
Answer:
Square     5    
Triangle    12    

(ii) Write the number of rectangles and triangles in the given picture

Rectangle _______
Triangle ______
Answer:
Rectangle    3    
Triangle    1   

(iii) Identify the cut shapes and write the names in the boxes given below.

Answer:

Answer: