CBSE Class 4 Maths Patterns And Designs Worksheet Set 04

Observe the patterns and fill in the boxes

Question 1. Observe the pattern: 100, 200, 300, ... and fill in the next boxes.
Answer: The pattern increases by 100 each time.
Next terms are: 400, 500, 600, 700
In simple words: Add 100 to the previous number to get the next number.

Exam Tip: Always find the difference between two consecutive numbers to identify the rule.

Question 2. Observe the pattern: 101, 202, 303, ... and fill in the next boxes.
Answer: The pattern increases by 101 each time.
Next terms are: 404, 505, 606, 707
In simple words: Add 101 to the previous number to get the next number.

Exam Tip: Notice that the hundreds and units digits follow the counting sequence 1, 2, 3, 4, 5, 6, 7.

Question 3. Observe the pattern: 50A, 100B, 150C, ... and fill in the next boxes.
Answer: The numerical part increases by 50 each time, and the alphabetical part follows the English alphabet consecutively.
Next terms are: 200D, 250E, 300F, 350G
In simple words: Increase the number by 50 and move to the next letter in the alphabet.

Exam Tip: Split alphanumeric patterns into two separate parts (numbers and letters) to solve them easily.

Question 4. Observe the pattern: 270, 370, 470, ... and fill in the next boxes.
Answer: The pattern increases by 100 each time.
Next terms are: 570, 670, 770
In simple words: Add 100 to each number to find the next one.

Exam Tip: Only the hundreds digit increases by 1 while the tens and units digits remain unchanged.

Question 5. Observe the pattern: 12, 23, 34, ... and fill in the next boxes.
Answer: The pattern increases by 11 each time.
Next terms are: 45, 56, 67
In simple words: Add 11 to the previous number to get the next number.

Question 6. Observe the pattern: 81, 72, 63, ... and fill in the next boxes.
Answer: The pattern decreases by 9 each time.
Next terms are: 54, 45, 36
In simple words: Subtract 9 from the previous number to get the next number (multiples of 9 in reverse).

Exam Tip: Recognize descending sequences as subtraction patterns.

Question 7. Observe the pattern: 900Z, 800Y, 700X, ... and fill in the next boxes.
Answer: The numerical part decreases by 100 each time, and the alphabetical part moves backward in the English alphabet.
Next terms are: 600W, 500V, 400U, 300T
In simple words: Subtract 100 from the number and go to the previous letter in the alphabet.

Exam Tip: Check both directions—numbers are going down, letters are going backward from Z.

Question 8. Observe the pattern: 500A, 450AA, 400B, ... and fill in the next boxes.
Answer: The numerical part decreases by 50 each time. The letter pattern alternates or progresses as A, AA, B, BB (or alternating letters with doubled patterns). Following standard progression: 350BB, 300C, 250CC, 200D
In simple words: Decrease the number by 50 and follow the repeating or doubling letter sequence.

Exam Tip: Look closely at how letters repeat or grow alongside decreasing numbers.

Question 9. Observe the pattern: 98, 87, 76, ... and fill in the next boxes.
Answer: The pattern decreases by 11 each time.
Next terms are: 65, 54, 43
In simple words: Subtract 11 from the previous number to get the next number.

Question 10. Observe the tree/leaf/hut pattern sequence and complete the remaining boxes.

Answer: The visual pattern consists of alternating structural drawings (e.g., tree with upright lines, inverted lines, combined patterns repeating in a cyclic order). Continuing the exact repeating cycle of 3 distinct figures: Figure 1, Figure 2, Figure 3, Figure 1, Figure 2, Figure 3.
In simple words: Repeat the same group of shapes in the exact same order.
Exam Tip: For visual shape patterns, identify the core repeating unit (the set of shapes before the pattern repeats).