Class 6 Maths Chapter 1: Patterns in Mathematics – Notes

What is a Pattern?

A pattern is a repeated or regular way in which numbers, shapes, or objects are arranged.

Patterns can help us:

  • Predict what comes next
  • Find missing values
  • Understand mathematical rules
  • Solve problems faster

🔢 Number Patterns

Number patterns are sequences of numbers that follow a rule.

➤ Example types:

1. Increasing Pattern
Numbers get bigger each time.

Example:
2, 4, 6, 8, 10 …
👉 Rule: Add 2 every time


2. Decreasing Pattern
Numbers get smaller each time.

Example:
20, 18, 16, 14 …
👉 Rule: Subtract 2 every time


3. Multiplication Pattern
Numbers grow by multiplying.

Example:
1, 2, 4, 8, 16 …
👉 Rule: Multiply by 2


🔷 Patterns in Shapes

Patterns are not only in numbers but also in shapes.

Examples:

  • Circle, square, circle, square…
  • Triangle, triangle, square, triangle, triangle, square…

👉 These follow a repeating design.


🔁 Rules in Patterns

Every pattern follows a rule. The rule tells us how to move from one step to the next.

To find the rule, ask:

  • What is changing?
  • Is it adding, subtracting, or multiplying?
  • Is the shape or number repeating?

🧠 Finding Missing Terms

If a number or shape is missing in a pattern, we can find it by understanding the rule.

Example:
5, 10, __, 20, 25
👉 Rule: Add 5
👉 Missing number = 15


📊 Patterns in Everyday Life

Patterns are all around us:

  • Calendars follow weekly patterns
  • Traffic lights repeat in cycles
  • Floor tiles have repeating designs
  • Nature shows patterns in leaves and flowers

✨ Why Are Patterns Important?

Patterns help us:

  • Think logically
  • Solve problems faster
  • Predict future steps
  • Understand mathematics better

📌 Key Points to Remember

  • A pattern is a repeated design or rule
  • Patterns can be numbers, shapes, or real-life events
  • Every pattern has a rule
  • We can predict next terms using the rule

Class 6 Maths – Patterns in Mathematics (50 Questions)

🔢 A. Number Patterns (1–20)

  1. What is a number pattern?
  2. Write the next three numbers: 2, 4, 6, 8, __, __, __
  3. Complete the pattern: 5, 10, 15, __, __
  4. Find the rule: 3, 6, 12, 24, __
  5. What comes next: 1, 3, 5, 7, __
  6. Fill in the blank: 100, 90, 80, __, __
  7. Identify the pattern rule: 4, 8, 12, 16, __
  8. Write first 5 multiples of 6
  9. What is missing: 7, 14, __, 28, 35
  10. Continue: 11, 22, 33, __, __
  11. Is 9, 18, 27 a pattern? Explain briefly
  12. Find next term: 50, 45, 40, __
  13. Complete: 2, 4, 8, 16, __
  14. Write next 3 odd numbers after 15
  15. What rule is used: 10, 20, 40, 80
  16. Fill: 1, 4, 9, 16, __
  17. What is next: 100, 50, 25, __
  18. Identify pattern: 6, 12, 18, 24, __
  19. Find missing: 3, __, 9, 12
  20. Make your own pattern using +3 rule

🔷 B. Shape Patterns (21–30)

  1. What is a shape pattern?
  2. What comes next: ▲ ■ ▲ ■ __
  3. Identify pattern: ○ ○ ● ○ ○ ●
  4. Draw next shape: △ △ □ △ △ □ __
  5. What is repeating in a pattern?
  6. Give one real-life example of shape pattern
  7. Complete: ★ ★ ☆ ★ ★ ☆ __
  8. Is tile flooring an example of pattern?
  9. Identify rule in shapes: circle, square, circle, square
  10. Create a repeating shape pattern

🔁 C. Rules in Patterns (31–40)

  1. What is a rule in patterns?
  2. How do you find the rule of a number pattern?
  3. If pattern adds 5, what is next: 2, 7, 12, __
  4. What rule is used: 5, 10, 15, 20
  5. Find rule: 100, 80, 60, 40
  6. Complete: 3, 9, 27, __
  7. What operation is used in 2, 6, 18, 54?
  8. Write rule for 1, 2, 4, 8, 16
  9. Find missing term: 10, __, 30, 40
  10. Explain why patterns are useful

🧠 D. Missing Terms & Logic (41–50)

  1. Find missing number: 4, 8, __, 16
  2. Complete: 9, __, 27, 36
  3. What is missing: 25, 20, __, 10
  4. Find next: 7, 14, 21, __
  5. Complete: 1, 3, __, 7, 9
  6. Identify rule: 2, 5, 8, 11
  7. What number comes next: 6, 12, 24, __
  8. Find missing: 50, __, 30, 20
  9. Create pattern using multiply by 2
  10. Write one real-life pattern example

Answer Key

🔢 A. Number Patterns (1–20)

  1. A sequence of numbers following a rule
  2. 10, 12, 14
  3. 20, 25
  4. Multiply by 2
  5. 9
  6. 70, 60
  7. Add 4
  8. 6, 12, 18, 24, 30
  9. 21
  10. 44, 55
  11. Yes, it increases by +9 each time
  12. 35
  13. 32
  14. 17, 19, 21
  15. Multiply by 2
  16. 25
  17. 12.5
  18. Add 6
  19. 6
  20. (Student activity – any correct +3 pattern)

🔷 B. Shape Patterns (21–30)

  1. A repeated arrangement of shapes
  2. Repeating pattern: ○ ○ ●
  3. Shapes or numbers that repeat in order
  4. Floor tiles / rangoli / wallpapers
  5. ★ ★ ☆
  6. Yes
  7. Alternating circle and square
  8. (Student activity – any correct repeating pattern)

🔁 C. Rules in Patterns (31–40)

  1. A rule tells how a pattern continues
  2. By checking how numbers change (add/subtract/multiply)
  3. 17
  4. Add 5
  5. Subtract 20
  6. 81
  7. Multiply by 3
  8. Multiply by 2
  9. 20
  10. They help predict and solve problems quickly

🧠 D. Missing Terms & Logic (41–50)

  1. 12
  2. 18
  3. 15
  4. 28
  5. 5
  6. Add 3
  7. 48
  8. 40
  9. (Example: 2, 4, 8, 16, 32)
  10. (Any real-life pattern: traffic lights, calendar, tiles, etc.)