GRADE 9 Mathematics – INTEGERS Quiz

1. What is the smallest positive integer?

0
2
-1
1
Explanation:

The smallest positive integer is 1 because it is the first positive whole number.

2. Which of the following is a negative integer?

10
5
-2
0
Explanation:

-2 is a negative integer because it is less than zero.

3. What is the result of multiplying two negative integers?

Zero
A fraction
A negative integer
A positive integer
Explanation:

When you multiply two negative integers, the result is a positive integer.

4. Which of the following is an even integer?

7
4
9
3
Explanation:

4 is an even integer because it is divisible by 2.

5. What is the additive inverse of -8?

8
-8
-16
16
Explanation:

The additive inverse of a number is the number that, when added to it, gives zero. Therefore, the additive inverse of -8 is 8.

6. Which of the following is a prime integer?

9
4
6
11
Explanation:

11 is a prime integer because it is only divisible by 1 and itself.

7. What is the sum of an odd integer and an even integer?

A fraction
An even integer
An odd integer
Zero
Explanation:

The sum of an odd integer and an even integer is always an odd integer.

8. Which of the following is a composite integer?

8
5
13
2
Explanation:

8 is a composite integer because it has factors other than 1 and itself.

9. What is the result of dividing a positive integer by zero?

Infinity
Zero
The positive integer
A fraction
Explanation:

Division by zero is undefined in mathematics and it is represented as infinity in this case.

10. How many integers are there between -3 and 2?

8
4
6
5
Explanation:

There are 5 integers between -3 and 2: -2, -1, 0, 1, and 2.

11. If a is an even integer and b is an odd integer, what is the sum of a and b?

Zero
An odd integer
An even integer
A fraction
Explanation:

The sum of an even integer and an odd integer is always an odd integer.

12. Which of the following is a perfect square integer?

40
49
31
25
Explanation:

25 is a perfect square integer because it is the square of 5.

13. What is the product of two even integers?

An odd integer
An even integer
A prime integer
Zero
Explanation:

The product of two even integers is always an even integer.

14. If you add an integer to its additive inverse, what is the result?

The integer
A fraction
Zero
Infinity
Explanation:

The additive inverse of a number is the number that, when added to it, gives zero, therefore the sum is zero.

15. Which of the following is a rational integer?

7
√2
3
1/3
Explanation:

3 is a rational integer because it can be expressed as a ratio of two integers.

16. What is the difference between a negative integer and a positive integer?

An even integer
A negative integer
A positive integer
An odd integer
Explanation:

The difference between a negative integer and a positive integer results in a negative integer.

17. Which of the following is an odd integer?

20
30
17
12
Explanation:

17 is an odd integer because it is not divisible by 2.

18. What is the result of multiplying an odd integer by an even integer?

A fraction
An even integer
An odd integer
Zero
Explanation:

The product of an odd integer and an even integer is always an even integer.

19. What is the additive inverse of 20?

-40
-20
20
40
Explanation:

The additive inverse of a number is the number that, when added to it, gives zero. Therefore, the additive inverse of 20 is -20.

20. Which of the following is a prime integer?

6
8
13
16
Explanation:

13 is a prime integer because it is only divisible by 1 and itself.

21. What is the sum of two negative integers?

A fraction
Zero
A negative integer
A positive integer
Explanation:

The sum of two negative integers is always a negative integer.

22. Which of the following is a composite integer?

9
7
12
3
Explanation:

9 is a composite integer because it has factors other than 1 and itself.

23. What is the result of dividing zero by a positive integer?

The positive integer
A fraction
Infinity
Zero
Explanation:

Division by zero is undefined in mathematics and it is represented as zero in this case.

24. How many integers are there between -6 and 6?

11
14
13
12
Explanation:

There are 13 integers between -6 and 6: -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6.

25. If a is an odd integer and b is an even integer, what is the sum of a and b?

An even integer
An odd integer
A fraction
Zero
Explanation:

The sum of an odd integer and an even integer is always an odd integer.

26. Which of the following is a perfect square integer?

42
47
36
31
Explanation:

36 is a perfect square integer because it is the square of 6.