Learn everything about Odd Numbers (অযুগ্ম সংখ্যা) in the Number System for SCERT D.El.ED. exam. Clear concepts with examples, MCQs, and Assamese explanations tailored for teacher training preparation. Perfect resource for Assam TET, D.El.Ed., and other teaching exams.

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Odd Number (অযুগ্ম সংখ্যা)

Natural numbers that are not divisible by 2 are odd numbers (২ ৰে ভাগ কৰিব নোৱাৰা প্ৰাকৃতিক সংখ্যাবোৰ অযুগ্ম সংখ্যা)

Difference between two even no is  2

1 is the smallest odd Number.

Examples : 1, 3, 5, 7, 9, 11, 13, 15, ............................. 

Note : Even and Odd numbers identitify

1. Even : Last digit of number = 0, 2, 4, 6, 8

2. Odd : Last digit of number = 1, 3, 5, 7, 9

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📘 Even and Odd Number Relations (English)

• Even + Even = Even
  Example: 4 + 6 = 10 (Even)

• Odd + Odd = Even
  Example: 3 + 5 = 8 (Even)

• Even + Odd = Odd
  Example: 4 + 3 = 7 (Odd)

• Even × Even = Even
  Example: 2 × 4 = 8 (Even)

• Odd × Odd = Odd
  Example: 3 × 5 = 15 (Odd)

• Even × Odd = Even
  Example: 2 × 5 = 10 (Even)

• Even − Even = Even
  Example: 8 − 2 = 6 (Even)

• Odd − Odd = Even
  Example: 7 − 3 = 4 (Even)

• Even − Odd = Odd
  Example: 8 − 3 = 5 (Odd)

• Odd − Even = Odd
  Example: 7 − 2 = 5 (Odd)

1. Which of the following is an odd number (নিম্নলিখিত কোনটো অযুগ্ম সংখ্যা)

A. 12
B. 24
C. 17
D. 28

2. What is the smallest odd natural number (সৰ্বনিম্ন অযুগ্ম প্ৰাকৃতিক সংখ্যা কোনটো)

A. 0
B. 1
C. 2
D. 3

3. Which of the following is not an odd number (নিম্নলিখিত কোনটো অযুগ্ম সংখ্যা নহয়)

A. 7
B. 11
C. 14
D. 25

4. The sum of two odd numbers is (দুটা অযুগ্ম সংখ্যাৰ যোগফল হ’ব)

A. Odd
B. Even
C. Zero
D. Prime

5. Which of these is a three-digit odd number (এইবোৰৰ ভিতৰত কোনটো তিনি অংকীয়া অযুগ্ম সংখ্যা)

A. 208
B. 399
C. 424
D. 888

6. The product of two odd numbers is (দুটা অযুগ্ম সংখ্যাৰ গুণফল হ’ব)

A. Even
B. Odd
C. Zero
D. Prime

7. Identify the odd number among the following (নিম্নলিখিত সংখ্যাবোৰৰ মাজত অযুগ্ম সংখ্যা চিনাক্ত কৰক)

A. 42
B. 63
C. 20
D. 84

8. Which one is not a property of odd numbers (নিম্নলিখিত কোনটো অযুগ্ম সংখ্যাৰ গুণ নহয়)

A. Always ends in 1, 3, 5, 7, or 9
B. Can be divided by 2 without remainder
C. Cannot be divided exactly by 2
D. Next number is even

9. Odd numbers are represented by which of the following set ( অযুগ্ম সংখ্যা কোনটো গোটৰে দ্বাৰা প্ৰতিনিধিত্ব কৰা হয়)

A. {2, 4, 6, 8}
B. {1, 3, 5, 7}
C. {10, 12, 14, 16}
D. {0, 2, 4, 6}

10. Which of the following statements is true (নিম্নলিখিত কোনটো বাক্য সঠিক)

A. The sum of odd and even is always odd
B. Odd + Odd = Odd
C. Odd × Even = Odd
D. Odd + Even = Even

Author of the Post

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CEO : Jahidul Islam (Moina)
B.sc, D.El.ED & B.Ed
Assamtetacademy@gmail.com

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