Tag: Patterns

Samacheer Kalvi 3rd Standard Maths Book Solutions Term 3 Chapter 3 Patterns

Iterative patterns and processes:

Question 1.
Continue the pattern to complete the rangoli.

Answer:

Question 2.
Make a pattern of your own on the given category and draw a rangoli.

Answer:

Question 3.
Draw a pullikolams by looking at the reference image without lifting your hand.

Answer:

Question 4.
Draw 2 pullikolams of your choice along the given dots.

Answer:

Patterns obtained by adding numbers (Text Book Page No. 22):

Complete the addition table and observe the pattern in them.

Question 2.
Write the numbers which add upto the given addition fact.

Answer:

Question 3.
Find out the missing numbers and write them in the given blank.

Answer:

Exercise (Text Book Page No. 25):

Continue the patterns by using multiplication as repeated addition.

a.

Answer:

b.

Answer:

Exercise (Text Book Page No. 26):

Express the division facts as repeated subtraction using patterns.

a) 24 ÷ 3
Answer:

24 ÷ 3 = 8

b) 22 ÷ 2
Answer:

22 ÷ 2 = 11

c) 32 ÷ 4
Answer:

32 ÷ 4 = 8

d) 15 ÷ 3
Answer:

15 ÷ 3 = 5

3rd Standard Maths Guide Patterns Additional Questions and Answers

Question 1.
Find out the missing numbers and write them in the given blank.

Answer:

Question 2.
Continue the patterns by using multiplication as repeated addition.

Answer:

Question 3.
Express the division facts as repeated subtraction using patterns.

a) 24 ÷ 4
Answer:

24 ÷ 4 = 6

b) 21 ÷ 3
Answer:

21 ÷ 3 = 7

Samacheer Kalvi 3rd Standard Maths Guide

Samacheer Kalvi 3rd Standard Maths Book Solutions Term 2 Chapter 2 Patterns

Recall (Text Book Page No. 19):

Circle the odd numbers in the given sequence.

(i) 26, 29, 37, 42,

45
Answer:
29, 37, 45

(ii) 85, 84, 76, 65, 64
Answer:
85, 65

(iii) 11, 22, 33, 44, 55, 66.
Answer:
11, 33, 55

(iv) 357, 896, 572, 951, 865, 423
Answer:
357, 951, 865, 423

(iv) 952, 698, 342, 780, 920, 850.
Answer:
No odd numbers.

Complete the table from the above numbers.

Answer:

Observe the number chart given below. Colour the odd numbers with green and even numbers with blue.

Answer:

We observe that odd and even numbers occur alternatively.

Complete the patterns :

i) 21, 22, 23, ____, ____, ____, ____, ____
Answer:
21, 22, 23, 24, 25, 26, 27, 28

ii) 1, 3, 5, ____, ____, ____, ____, ____
Answer:
1, 3, 5, 7, 9, 11, 13, 15

iii) 2, 4, 6, ____, ____, ____, ____, ____
Answer:
2, 4, 6, 8, 10, 12, 14, 16

iv) 85, 86, 87, 88, ____, ____, ____, ____, ____
Answer:
85, 86, 87, 88, 89, 90, 91, 92, 93

v) 39, 41, 43, ____, ____, ____, ____, ____
Answer:
39, 41, 43, 45, 47, 49, 51, 53

Let’s explore patterns while adding and subtracting odd and even numbers.

Add the following numbers:

(i)

Answer:

(ii)

Answer:

(iii)

Answer:

(iv)

Answer:

(v)

Answer:

(vi)

Answer:

Thus, we observe that addition of odd and even numbers involve a pattern.

Lets tabulate the patterns observed.

Answer:

Subtract the following numbers:

(i)

Answer:

(ii)

Answer:

(iii)

Answer:

(iv)

Answer:

(v)

Answer:

(vi)

Answer:

Let’s tabulate the patterns observed.

Answer:

Exercise (Text Book Page No. 22):

Question 1.
Make the patterns by multiplying with 10.

i) 1, 3, 5, 7, ____, ____, ____, ____
Answer:
10, 30, 50, 70

ii) 2, 4, 6, 8, ____, ____, ____, ____
Answer:
20, 40, 60, 80

iii) 1, 3, 7, 13, ____, ____, ____, ____
Answer:
10, 30, 70, 130

iv) 3, 5, 9, 15, ____, ____, ____, ____
Answer:
30, 50, 90, 150

Question 2.
Make the patterns by dividing with 10.

i) 110, 120, 130, ____, ____, ____, ____
Answer:
11, 12, 13

ii) 210, 230, 250, ____, ____, ____, ____
Answer:
21, 23, 25

iii) 470, 430, 410, ____, ____, ____, ____
Answer:
47, 43, 41

iv) 540, 470, 350, ____, ____, ____, ____
Answer:
54, 47, 35

v) 500, 210, 520, ____, ____, ____, ____
Answer:
50, 21, 52

Question 3.
Find the rule and complete the following pattern.

Answer:

3rd Standard Maths Guide Patterns Additional Questions and Answers

I. Complete the patterns.

(i) 31, 32, 33, ____, ____, ____, ____, ____
Answer:
31, 32, 33, 34, 35, 36, 37, 38

(ii) 7, 9, 11, ____, ____, ____, ____, ____
Answer:
7, 9, 11, 13, 15, 17, 19, 21

(iii) 12, 14, 16, ____, ____, ____, ____, ____
Answer:
12, 14, 16, 18, 20, 22, 24, 26.

3rd Standard Maths Guide Numbers Additional Questions and Answers

II. Make the patterns by multiplying with 10.

(i) 9, 11, 13, 15, ____, ____, ____, ____, ____
Answer:
90, 110, 130, 150, 170, ….

(ii) 10, 12, 14, 16, ____, ____, ____, ____, ____
Answer:
100, 120, 140, 160, 180,….

3rd Standard Maths Guide Numbers Additional Questions and Answers

III. Make the patterns by dividing with 10.

(i) 660, 640, 620, ____, ____, ____, ____, ____
Answer:
66, 64, 62, 60, …

(ii) 320, 350, 380, ____, ____, ____, ____, ____
Answer:
32, 35, 38, 40, ..

3rd Standard Maths Guide Numbers Additional Questions and Answers

IV. Add the following numbers.

(i) 942 + 413
Answer:

(ii) 667 + 764
Answer:

3rd Standard Maths Guide Numbers Additional Questions and Answers

V. Subtract the following numbers.

(i) 644 – 432
Answer:

(ii) 739 – 527
Answer:

Samacheer Kalvi 3rd Standard Maths Guide

Samacheer Kalvi 3rd Standard Maths Book Solutions Term 1 Chapter 3 Patterns

Practice (Text Book Page No. 36):

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

b. Continue the growing pattern.

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Practice (Text Book Page No. 37):

Continue the repeating patterns upto 3 steps in the space Provided.

Activity 3 (Text Book Page No. 37):

Answer:

Activity 4 (Text Book Page No. 38):

Question 1.
Match the following and complete the pattern.

Answer:

Question 2.
Match the following.

Answer:

Practice (Text Book Page No. 39):

Continue the Straight – line patterns.

Activity 5 (Text Book Page No. 42):

Complete the symmetrical image.

Question 1.

Answer:

Question 2.

Answer:

Activity 6 (Text Book Page No. 43):

a. Draw the lines of symmetry for the following figures.

Answer:

b. Circle the non – symmetrical shapes.

Answer:

Activity 7 (Text Book Page No. 43):

Draw the other half from the line of symmetry to make it symmetrical.

Question 1.

Answer:

Activity 8 (Text Book Page No. 43):

Line symmetry is also found in some letters of the alphabet. Complete Write the letters with line symmetry.
Answer:
1 symmetry (vertical) – A, H, I, M, O, T, U, V, W, X, Y
1 symmetry (Horizontal) – B, C, D, E, H, I, K, O, X
2 symmetry (Horizontal and vertical) – H, I, O, X
No symmetry – F, G, J, L, N, N, P, P, Q, R, S, Z

Samacheer Kalvi 3rd Standard Maths Guide