CBSE Class 3 Mathematics Play With Patterns Worksheet Set 01

Competency: Understanding Basic Concepts

I. Observe the pattern and continue:

Question 1. Cube, Triangle, Cube, Triangle, _____, _____, _____
Answer: Cube, Triangle, Cube
In simple words: The shapes are repeating in a fixed alternating order of a 3D cube and a 2D triangle.

Exam Tip: Identify the core repeating unit in visual sequences before extending the pattern.

Question 2. Right arrow, Down arrow, Right arrow, Down arrow, _____, _____, _____
Answer: Right arrow, Down arrow, Right arrow
In simple words: The arrows alternate between pointing to the right and pointing downwards.

Exam Tip: Look closely at the direction of rotation or pointing for directional patterns.

Question 3. Plus/Cross shape, Plus/Cross shape, Triangle, Plus/Cross shape, Plus/Cross shape, _____, _____, _____
Answer: Triangle, Plus/Cross shape, Plus/Cross shape
In simple words: The sequence follows two cross shapes followed by one triangle, and this set repeats.

Exam Tip: Count the frequency of each shape in the repeating group to find the correct next term.

Question 4. Capsule/Oval standing, Circle, Circle, Capsule/Oval standing, Circle, Circle, _____, _____, _____
Answer: Capsule/Oval standing, Circle, Circle
In simple words: One vertical oval is followed by two circles, forming a repeating group of three figures.

Exam Tip: Pay attention to the orientation (standing vs lying) and the number of identical shapes.

Question 5. Smiley face, Star, Heart, Smiley face, _____, _____, _____
Answer: Star, Heart, Smiley face
In simple words: The pattern consists of a three-shape repeating loop: Smiley face, Star, and Heart.

Exam Tip: Trace the sequence from the beginning to confirm the exact order of symbols.

Competency: Ability to compute

II. Complete the following number patterns:

Question i. 5, 10, 15, 20, _______, _______, _______, _______
Answer: 25, 30, 35, 40
Each number increases by adding 5 to the previous number.
\(20 + 5 = 25\)
\(25 + 5 = 30\)
\(30 + 5 = 35\)
\(35 + 5 = 40\)
In simple words: Count forward in steps of 5.

Exam Tip: Find the difference between the first two numbers to determine the rule of addition.

Question ii. 8, 18, 28, 38, _______, _______, _______, _______
Answer: 48, 58, 68, 78
Each number increases by adding 10 to the previous number.
\(38 + 10 = 48\)
\(48 + 10 = 58\)
\(58 + 10 = 68\)
\(68 + 10 = 78\)
In simple words: Add 10 each time by increasing the tens digit by 1.

Exam Tip: When numbers increase by tens, the ones digit remains constant while the tens digit grows by 1.

Question iii. 99, 199, 299, 399, _______, _______, _______, _______
Answer: 499, 599, 699, 799
Each number increases by adding 100 to the previous number.
\(399 + 100 = 499\)
\(499 + 100 = 599\)
\(599 + 100 = 699\)
\(699 + 100 = 799\)
In simple words: Add 100 each time by increasing the hundreds digit by 1.

Exam Tip: Look at the hundreds place value changing while the tens and ones digits stay 99.

Question iv. 275, 274, 273, 272, _______, _______, _______, _______
Answer: 271, 270, 269, 268
Each number decreases by subtracting 1 from the previous number.
\(272 - 1 = 271\)
\(271 - 1 = 270\)
\(270 - 1 = 269\)
\(269 - 1 = 268\)
In simple words: Count backward in steps of 1.

Exam Tip: Watch out for decreasing patterns where numbers get smaller instead of larger.

I. Complete the following statements:

1. All numbers that end with 0, 2, 4, 6 and 8 are called ____________ numbers.

2. All numbers that end with 1, 3, 5, 7 and 9 are called ____________ numbers.

3. If we add 1 to an even number we get a ______________number.

4. If we add 1 to a odd number we get an ______________number.

5. If we add an odd number to a odd number we get an ____________ number.

6. If we add an even number to a odd number we get a ___________ number.

7. The greatest 1 digit even number is ________________.

8. The smallest 1 digit odd number is ________________.

9. The greatest 2 digit odd number is ________________.

10. The smallest 2 digit odd number is ________________.

Competency: Understanding Basic Concepts

I. Some secret messages are given below. Decode these messages and write:
a) 1g 2o 3o 4d 7m 5o 8r 9n 8i 2n 5g
_______________________________________________

b) 11w 2e 5l 8c 6o 3m 0e
_______________________________________________

c) AAWBBH NNE MMR DDE VVA WWR MME KKY GGO XXU?
________________________________________________

d) XXISSaTTmEEiFFnQQtVVhMMeAApUUlCCaHHyZZgAArUUo MMuLLnRRd
_________________________________________________

II. Arrange these names in alphabetical order and number these names in the box:

Mohan ___________         Shilpa ___________

Lila ___________               Nandu ___________

Chitra ___________           Pawan ___________

Venu ___________             Ahmed ___________

Zeenat ___________          Sameer ___________