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Vidaara.orgClass 4 · Mathematics
CodeVID-M4-00-CT
Number Patterns — Full Chapter Test
Chapter: Number Patterns
Topic: Complete chapter — all topics
Maximum Marks: 35
Time: 75 minutes
Name: ____________________ Roll No.: __________ Date: ____________

General Instructions

  • This is a full-length test covering the whole chapter — every topic is included.
  • All questions are compulsory.
  • Section A carries 1 mark each, Section B 2 marks, Section C 3 marks and Section D 5 marks.
  • Show all working for Sections B, C and D. Only final answers are given at the end — for full solutions, raise your doubts with your teacher.
Section A — Multiple Choice Questions 5 × 1 = 5 marks
1.
A growing pattern:
  • A.stays the same
  • B.increases by a rule
  • C.decreases
  • D.is random
2.
A shrinking pattern:
  • A.increases
  • B.decreases by a rule
  • C.stays the same
  • D.is random
3.
An input-output table applies a ___ to each input.
  • A.number
  • B.rule
  • C.shape
  • D.colour
4.
The rule of $2, 4, 6, 8$ is:
  • A.add $1$
  • B.add $2$
  • C.multiply by $2$
  • D.add $4$
5.
The rule of $20, 15, 10, 5$ is:
  • A.subtract $5$
  • B.add $5$
  • C.divide by $2$
  • D.subtract $10$
Section B — Short Answer (2 marks) 4 × 2 = 8 marks
6.
Next term of $2, 4, 6, 8$.
7.
Next term of $20, 15, 10$.
8.
Rule "$+3$": input $5$ gives output:
9.
Next term of $5, 10, 15$.
Section C — Short Answer (3 marks) 4 × 3 = 12 marks
10.
Next two terms of $4, 8, 12, \ldots$
11.
Next two terms of $30, 25, 20, \ldots$
12.
Rule "$\times5$": find outputs for inputs $1, 2, 3$.
13.
Next term of $2, 4, 8, 16$.
Section D — Long Answer (5 marks) 2 × 5 = 10 marks
14.
For $3, 6, 9, 12, \ldots$, find the rule and the next three terms.
15.
For $48, 42, 36, \ldots$, find the rule and the next three terms.

Answer Key

Section A — Multiple Choice Questions
  1. (B) increases by a rule
  2. (B) decreases by a rule
  3. (B) rule
  4. (B) add $2$
  5. (A) subtract $5$
Section B — Short Answer (2 marks)
  1. $10$.
  2. $5$.
  3. $8$.
  4. $20$.
Section C — Short Answer (3 marks)
  1. $16, 20$.
  2. $15, 10$.
  3. $5, 10, 15$.
  4. $32$.
Section D — Long Answer (5 marks)
  1. Rule: add $3$; $15, 18, 21$.
  2. Rule: subtract $6$; $30, 24, 18$.
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