Revision Mathematics Primary 2 Second Term Lesson Notes Week 11

Mathematics Primary 2 Second Term Lesson Notes Week 11: Revision

Part A: Review and Revision (20 FAQs with Answers)

1. What is addition?
   Adding two or more numbers to get the total.
2. What is subtraction?
   Taking one number away from another.
3. What are odd numbers?
   Numbers that cannot be divided by 2, like 1, 3, 5, and 7.
4. What are even numbers?
   Numbers that can be divided by 2, like 2, 4, 6, and 8.
5. What are prime numbers?
   Numbers with only two factors: 1 and the number itself, like 2, 3, and 5.
6. What is a factor?
   A number that divides another number without a remainder.
7. What is a prime factor?
   A factor that is also a prime number.
8. What are the factors of 12?
   1, 2, 3, 4, 6, and 12.
9. What is the smallest prime number?
   2.
10. What is the largest factor of any number?
    The number itself.
11. What is division?
    Sharing a number into equal parts.
12. What is multiplication?
    Repeated addition of a number.
13. What are the prime factors of 30?
    2, 3, and 5.
14. What is an open sentence in math?
    A statement with missing numbers to complete.
15. Give an example of an open sentence.
    ___ + 5 = 10.
16. What are the factors of 16?
    1, 2, 4, 8, and 16.
17. What are the even numbers between 1 and 10?
    2, 4, 6, 8, and 10.
18. Is 9 a prime number?
    No, it has more than two factors.
19. What is the difference between 20 and 15?
    5.
20. How many times does 5 go into 20?
    4 times.

Part B: Objective Questions (20 Fill-in-the-Blank Questions with Options)

1. The sum of 7 and 5 is ___.
   a) 11
   b) 12
   c) 13
   d) 10
   Answer: b) 12
2. The difference between 15 and 9 is ___.
   a) 5
   b) 6
   c) 7
   d) 8
   Answer: b) 6
3. Which of these is a prime number?
   a) 9
   b) 10
   c) 7
   d) 4
   Answer: c) 7
4. Factors of 20 include ___.
   a) 1, 2, 4, 5, 10, 20
   b) 1, 2, 3, 4, 5
   c) 1, 2, 5, 10
   d) 1, 5, 10, 20
   Answer: a) 1, 2, 4, 5, 10, 20
5. The product of 3 and 4 is ___.
   a) 12
   b) 7
   c) 9
   d) 11
   Answer: a) 12
6. An even number between 10 and 20 is ___.
   a) 11
   b) 13
   c) 14
   d) 15
   Answer: c) 14
7. The smallest factor of 8 is ___.
   a) 2
   b) 8
   c) 1
   d) 4
   Answer: c) 1
8. What is 2 × 6?
   a) 10
   b) 11
   c) 12
   d) 13
   Answer: c) 12
9. Prime factors of 15 are ___.
   a) 3 and 5
   b) 1 and 15
   c) 2 and 5
   d) 4 and 5
   Answer: a) 3 and 5
10. What is 20 ÷ 4?
    a) 5
    b) 6
    c) 4
    d) 3
    Answer: a) 5
11. ___ is not a prime number.
    a) 11
    b) 12
    c) 7
    d) 5
    Answer: b) 12
12. What is 2 × 9?
    a) 16
    b) 18
    c) 19
    d) 20
    Answer: b) 18
13. The sum of 20 and 15 is ___.
    a) 35
    b) 25
    c) 30
    d) 40
    Answer: a) 35
14. Which of these is an odd number?
    a) 6
    b) 4
    c) 7
    d) 8
    Answer: c) 7
15. What is 5 × 4?
    a) 20
    b) 15
    c) 25
    d) 30
    Answer: a) 20

Part C: Theory Questions (20 Short Answer Questions)

1. Write the factors of 10.
2. Find the sum of 14 and 9.
3. Subtract 7 from 15.
4. Write the prime factors of 30.
5. Multiply 3 by 6.
6. Write the even numbers from 1 to 10.
7. Divide 16 by 4.
8. What is the largest factor of 12?
9. Write two odd numbers between 1 and 10.
10. What is the product of 5 and 7?
11. Subtract 8 from 20.
12. Add 6 and 13.
13. Write the factors of 15.
14. What is 2 × 5?
15. List the prime factors of 12.
16. Write an example of an even number.
17. What is 10 ÷ 2?
18. Subtract 5 from 9.
19. Multiply 4 by 3.
20. Write the odd numbers from 1 to 15.

Part D: True or False Questions (20 Statements)

1. A factor of 10 is 5. (True)
2. All even numbers are divisible by 2. (True)
3. The sum of 3 and 7 is 12. (False)
4. 9 is a prime number. (False)
5. 2 is the smallest prime number. (True)
6. 15 is an even number. (False)
7. 3 × 4 = 12. (True)
8. 20 ÷ 5 = 4. (True)
9. Odd numbers cannot be divided by 2. (True)
10. The largest factor of a number is the number itself. (True)
11. 1 is a prime number. (False)
12. The factors of 12 include 3 and 4. (True)
13. 6 is an odd number. (False)
14. 9 × 2 = 18. (True)
15. Prime numbers have more than two factors. (False)
16. 5 is a factor of 25. (True)
17. All odd numbers are prime. (False)
18. 8 is a factor of 16. (True)
19. 10 ÷ 2 = 5. (True)
20. 7 is an even number. (False)

Part E: Fill-in-the-Gaps Questions (20 Questions)

1. The factors of 6 are ___, ___, and ___.
2. ___ is the smallest prime number.
3. An even number between 10 and 20 is ___.
4. The sum of 12 and 8 is ___.
5. The product of 5 and 4 is ___.
6. Prime numbers have only ___ factors.
7. The largest factor of 15 is ___.
8. 3 × 7 = ___.
9. 20 ÷ 4 = ___.
10. An example of an odd number is ___.
11. Subtract 9 from 15 to get ___.
12. Add 14 and 6 to get ___.
13. ___ is a factor of 9.
14. 12 ÷ 3 = ___.
15. Write an even number: ___.
16. The sum of 11 and 9 is ___.
17. ___ × 6 = 18.
18. 2 × 4 = ___.
19. Odd numbers include ___ and ___.
20. The smallest factor of 10 is ___.