Worksheet Solutions: Play With Patterns - 2 | Mathematics for Class 3: NCERT PDF Download

Q1: Observe the growing pattern and fill in the blanks

(i) 1,3,5,7,9,___,___,___.
Ans: If we observe the numbers here they are increasing by 2 therefore, the next 3 numbers are 11,13,15.

(ii) 2,4,6,8,___,___,____
Ans: If we look at the pattern here it is increasing by 2 therefore, the next 3 numbers are 10,12,14.

(iii) 0A, 11B,12C,____,____,____
Ans: In this pattern, there are two things to keep in mind. First, the numbers are increasing by one and the second are the letters are also increasing by one therefore, the next three numbers will be 13D,14E, and 15F.

(iv) 3,6,12,24,___,___,___
Ans: In this case, it is a growing pattern where 3 is added by 3 to give 6, then 6 is added by 6 to give 12, similarly 12 is added by 12 to give 24, therefore the next three numbers are 48,96,192.

(v) 0,5,15,30,___,___,___
Ans: Here the difference between the first and the second number is 5, the second and third number is 10, third and fourth is 15 therefore, the next number should be 30+20, 50+25 and 75+30, therefore the answer is 50,75,105.

Q2: Let’s have fun with patterns, mark the correct answer from the following.

Ans

Q3: Write more odd and Even Numbers

(i) Write 5 odd numbers.
Ans: 3,5,7,9,11

(ii) Write 5 even numbers.
Ans: 2,4,6,8,10

(iii) Write any two 2 digit even numbers.
Ans: 22,44

(iv) Write any two 2 digit odd numbers?
Ans: 13,19

Q4: Encircle the Even and Odd numbers

(i) 50,75,39,10,42,88,91,22,33
Ans: 50,10,42,88,22

(ii) 99,89,66,69,70,31,53,11,85
Ans: 99,89,69,31,53,11,85

Q5: Write the numbers are even or odd and add:

(i) 98+44 =
Ans: 98 – even
44 – even
142

(ii) 76+43+21 =
Ans: 76 – even
43-odd
21-odd
140

Q6: Complete the following patterns

(i) _____,35,______,55,________,75,_________.
Ans: 25,35,45,55,65,75,85

(ii) 101,______,301,______,501,_______,701________.
Ans: 101,201,301,401,501,601,701,801

(iii) _______,50,________,100,________,150,________.
Ans: 25,50,75,100,125,150,175

(iv) ____,50,____,150,_____,250,_______350.
Ans: 0,50,100,150,200,250,300,350