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Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 3 Measurements Ex 3.1 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 3 Measurements Ex 3.1

Question 1.
Rani hod 1 litre coconut oil. She shared it equally among her 5 friends. How much does each person have?
Answer:
1 litre = 1000 ml

Each person have 200 ml.

Question 2.
A teapot contains 2 litres, it is poured in cups with a capacity of 500 ml. How many cups can be filled?
Answer:
1 litre = 1000 ml
2 litre = 1000 × 2
= 2000 ml

4 cups

Question 3.
Ram has 1 litre of juice bottle if he gives his friend 100 ml of juice. How much is left with him?
Answer:
1 litre = 1000 ml

900 ml is left with me

Question 4.
Change litre into millilitre
1. 1l = ______ ml
Answer:
1l = 1000 ml

2. 7l = ______ ml
Answer:
7l = 7 × 1000 = 7000 ml

3. 5l = ______ ml
Answer:
5l = 5 × 1000 = 5000 ml

4. 9l = ______ ml
Answer:
9l = 9 × 1000 = 9000 ml

5. 4l = ______ ml
Answer:
4l = 4 × 1000 = 4000 ml

Question 5.
Change millilitre into litre
1. 6000 ml = ______ l
Answer:
6 litres

2. 2000 ml = ______ l
Answer:

2 litres

3. 8000 ml = ______l
Answer:

8 litres

4. 9000 ml = ______ l
Answer:

9 litres

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.7 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.7

Simplify the following multiplication facts by adding partial products.
Question 1.
9 × 42
Answer:
42 = 40 + 2
40 × 9 = 360
2 × 9 = 18
9 × 42 = 360 + 18 = 378

Question 2.
3 × 78
Answer:
78 = 70 + 8
70 × 3 = 210
8 × 3 = 24
3 × 78 = 210 + 24 = 234

Question 3.
36 × 12
Answer:
36 = 30 + 6
30 × 12 = 360
6 × 12 = 72
36 × 12 = 360 + 72 = 432

Question 4.
18 × 19
Answer:
19 = 10 + 9
10 × 18 = 180
18 × 9 = 162
180 + 162 = 342

Question 5.
68 × 31
Answer:
68 = 60 + 8
60 × 31 = 1860
8 × 31 = 248
68 × 31 = 1860 + 248 = 2108

Question 6.
42 × 21
Answer:
42 = 40 + 2
40 × 21 = 840
2 × 21 = 42
42 × 21 = 840 + 42 = 882

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.6 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.6

Add and subtract the following problems using multiples of 10, 100 (Mentally)

Question 1.
745 + 40 = _______
Hint:

4 + 4 = 8
745 + 40 = 785
Answer:
785

Question 2.
328 + 30 = _______
Hint:

2 + 3 = 5
328 + 30 = 358
Answer:
358

Question 3.
566 + 20 = _______
Hint:

6 + 2 = 8
566 + 20 = 586
Answer:
586

Question 4.
475 + 100 = _______
Hint:

4 + 1 = 5
475 + 100 = 575
Answer:
575

Question 5.
686 + 300 = _______
Hint:

6 + 3 = 9
686 + 300 = 986
Answer:
986

Question 6.
345 + 600 = _______
Hint:

3 + 6 = 9
345 + 600 = 945
Answer:
945

Question 7.
6348 – 10 = _______
Hint:

4 – 1 = 3
6348 – 10 = 6338
Answer:
6338

Question 8.
541 – 40 = _______
Hint:

4 – 4 = 0
541 – 40 = 501
Answer:
501

Question 9.
495 – 300 = _______
Hint:

4 – 3 = 1
495 – 300 = 195
Answer:
195

Question 10.
657 – 500 = _______
Hint:

6 – 5 = 1
657 – 500 = 157
Answer:
157

Question 11.
895 – 500 = _______
Hint:

8 – 5 = 3
895 – 500 = 395
Answer:
395

Question 12.
365 – 300 = _______
Hint:

3 – 3 = 0
365 – 300 = 65
Answer:
65

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.5 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.5

Estimate and calculate:

Answer:

 

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.4 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.4

Estimate the following numbers to nearest tens and then add or subtract.
Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.3 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.3

What else could you frame some more questions based on this table?
Answer:
i) What is the price of 6 kg of boiled rice?
ii) What is the price of loo g of red chilly?
iii) What is the price of 250 g of tamarind?
iv) What is the price of 2 kg of wheat?
v) What is the sum of the price of 6 kg boiled rice and 1 kg raw rice?

Question 1.
Frame word problems, using the picture given

Cost of 1 piece of cake ₹ 25
Answer:
1. How many pieces of cake are there?
2. Find the cost of 5 pieces of cake?

Question 2.
Frame word problems, using the picture given:

Total cost of the clocks ₹ 490
Answer:
1. What is the total cost of 1 clock?
2. What is the total cost of 3 clock

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.2 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.2

Divide the following

Question 1.
5632 ÷ 6
Answer:

Quotient = 938
Remainder = 4

Question 2.
7460 ÷7
Answer:

Quotient = 1065
Remainder = 5

Question 3.
4964 ÷ 8
Answer:

Quotient = 62
Remainder = 4

Question 4.
8616 ÷ 6
Answer:

Quotient = 1436
Remainder = 0

Question 5.
8645 ÷ 7
Answer:

Quotient = 1235
Remainder = 0

Question 6.
5742 ÷ 9
Answer:

Quotient = 638
Remainder = 0

Question 7.
In my school, there are 1115 students from class 1 to 8.
If the number of students is same in all the classes, how many
students are there in each class?
Answer:

139 students

Question 8.
The height of a mountain is 7821 m. Raj took 9 days to reach the top.
How many metres did he cover daily if he travelled equal distances every day?
Answer:

He travelled 869 m every day

Question 9.
A total of 1787 kg wheat has to be packed equally in 7 bags. What will be the weight of each bag?
Answer:

Each bag weights 225 kg

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 2 Numbers Ex 2.1 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 2 Numbers Ex 2.1

Simplify the following

Question 1.
896 ÷ 5
Answer:

Question = 179
Remainder = 1

Question 2.
696 ÷ 6
Answer:

Question = 116
Remainder = 0

Question 3.
686 ÷ 7
Answer:

Question = 98
Remainder = 0

Question 4.
813 ÷ 8
Answer:

Question = 101
Remainder = 5

Question 5.
891 ÷ 8
Answer:

Question = 111
Remainder = 3

Question 6.
703 ÷ 2
Answer:

Question = 351
Remainder = 1

Question 7.
Rahul has 192 toy cars. He put them equally in 6 boxes. How many toy cars will he put in each box? How many toy cars are left over?
Answer:

Question = 32
Remainder = 0
32 toys in each box. No toys left over.

Question 8.
Akila has 495 photographs to put in an album. She can put 9 photographs on each page. How many pages can she fill?
Answer:

Question = 55
Remainder = 0
She filled 55 pages

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 1 Geometry InText Questions Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 1 Geometry InText Questions

Complete the patterns using the given shapes and shade with your own colour.

(i)

Answer:

(ii)

Answer:

(iii)

Answer:

Tamilnadu State Board New Syllabus Samacheer Kalvi 4th Maths Guide Pdf Term 3 Chapter 1 Geometry Ex 1.1 Textbook Questions and Answers, Notes.

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 3 Chapter 1 Geometry Ex 1.1

Question 1.
Write the shape of the patterns present in the picture given below
(i)

Answer:
Spiral

(ii)

Answer:
Circle

Question 2.
Complete the patterns given below.
(i)

Answer:

(ii)

Answer:

(iii)

Answer:

(iv)

Answer:

Question 3.
Draw simple rangoli. Use your own creativity to fill them.
Answer: