WorksheetsMathematics Challenge for Grade 9
Total questions: 20
Worksheet time: 10mins
Identify whether 3/4 is a rational number.
3/4 is a whole number.
3/4 is an irrational number.
Yes, 3/4 is a rational number.
3/4 cannot be expressed as a fraction.
Which of the following is a rational number: √2, 0.75, π?
1.5
0.75
-3
√3
Apply the exponent rule: Simplify (2^3) * (2^2).
16
24
32
10
What is the value of 5^0?
0
1
5
10
Simplify the expression: (x^2)^3.
x^6
x^9
x^3
x^5
Calculate 20% of 150.
35
40
30
25
If a shirt costs $40 and is on sale for $30, what is the percentage discount?
15%
30%
40%
25%
A car is bought for $20,000 and sold for $18,000. What is the loss in dollars?
3000
2500
2000
1500
If a product is sold for $120 with a profit of $30, what was the cost price?
$90
$70
$80
$100
Simplify the expression: 3x + 4x - 2x.
x
5x
6x
3x + 2x
Identify the rational number among the following: -1, 0, 1/3, √5.
-1, 0, 1/3
2/3
-√5
3.14
What is the value of 2^4 - 2^2?
12
8
16
4
If a student scores 45 out of 60 in a test, what is the percentage score?
65%
70%
75%
80%
A laptop is bought for $800 and sold for $720. What is the percentage loss?
10%
15%
5%
20%
If 3x + 5 = 20, what is the value of x?
10
5
7
3
Simplify: 4(a + 2) - 3a.
3a + 4
4a + 2
a + 8
a + 2
Which of the following is not a rational number: 0.333..., -2, √9, √3?
0.25
-√4
1.5
√3
Calculate 15% of 200.
30
40
25
50
If a bicycle is bought for $150 and sold for $180, what is the profit percentage?
20%
30%
25%
15%
Simplify the expression: 2(x + 3) + 4(x - 1).
2x + 6
4x + 10
6x + 2
8x - 2
