×
Edugain
Login/Register
Edugain for School
Hong Kong
Home
School Math
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
Grade 6
Grade 7
Grade 8
Grade 9
Grade 10
Competitive Exams
SAT Subject Test: Math Level 1
SEAMO
Olympiad
Kangaroo
SASMO
Challenge
Articles
My Edugain
Account Type
For Students/Parents
For Teachers
For Schools
Subscription Type
Edugain Advantage
Edugain Free Trial
Edugain Free User
Edugain Admin
Edugain Advantage
Edugain Online Advantage
Edugain Print Advantage
Edugain Teacher Advantage
Teacher Online Advantage
Teacher Print Advantage
Teacher Premium Advantage
My Actions
Learning Dashboard
Account Settings
My Alerts
Search
Home
Math
Grade 8
Quick Topics
Grade 8 Math
1
2
3
4
5
6
7
8
9
10
Hong Kong School Math
Competitive Exams
Quick Topics
Rational Numbers
Sample Question
Which of the following statement is true?
A.
1
-9
>
1
-10
B.
1
-10
<
-3
30
C.
1
-10
>
-3
30
D.
1
-10
=
-3
30
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Linear Equations of One Variable
Sample Question
When a number is divided by a divisor, it gives a quotient that is
1
12
times the divisor, and leaves a remainder that is
1
3
times the divisor. If the remainder was 48, then what was the dividend?
A.
1776
B.
1786
C.
1770
D.
1779
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Understanding Quadrilaterals
Sample Question
Find the measure of each exterior angle of a regular polygon of ^@8^@ sides.
A.
^@ 75 ^ \circ ^@
B.
^@ 45 ^ \circ ^@
C.
^@ 50 ^ \circ ^@
D.
^@ 40 ^ \circ ^@
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Square and Square Roots
Sample Question
What is the sum of the first 53 odd numbers?
A.
2704
B.
2806
C.
2809
D.
2756
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Cubes and Cube Root
Sample Question
Take a number
x
, and multiply it with 7. Take the cube of the resulting number. What is the ratio of this number to the cube of the original number?
A.
49:7
B.
343:1
C.
49:1
D.
343:7
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Comparing Quantities
Sample Question
Find compound interest on ^@$100000^@ for ^@2^@ years and ^@4^@ months at ^@30\%^@ per annum compounded annually.
A.
^@$85900^@
B.
^@$77310^@
C.
^@$85920^@
D.
^@$85933^@
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Algebraic Expressions and Identities
Sample Question
Find value of
y
from the equation
-2
y
+ 1
3
-
2
y
- 1
4
=
0.1
y
+ 35.2
12
.
A.
y = -4
B.
y = -3
C.
y = -2
D.
y = 0
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Visualizing Solid Shapes
Sample Question
Find the 3-D shape that fits best with the given description:
^@ \text { 5 faces, 8 edges, and 5 vertices } ^@
A.
Triangular Pyramid
B.
Triangular Prism
C.
Rectangular Pyramid
D.
None of these
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Mensuration
Sample Question
Area of a right triangle is ^@30 \space cm^2^@. If one of its legs measures ^@6 \space cm^@, find the length of the other leg.
A.
^@ 3 \space cm^@
B.
^@20 \space cm^@
C.
^@5 \space cm^@
D.
^@10 \space cm^@
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Exponents and Powers
Sample Question
By what number should ^@{ \Bigg ( \dfrac { 3 }{ 2 } \Bigg ) } ^ { -3 } ^@ be divided so that the quotient is ^@{ \Bigg ( \dfrac { -9 }{ 4 } \Bigg ) } ^ { -1 } ?^@
A.
^@\dfrac { 7 }{ 1 }^@
B.
^@\dfrac { 1 }{ 7 }^@
C.
^@ \dfrac { -2 }{ 3 } ^@
D.
^@\dfrac { 3 }{ -2 }^@
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Direct and Inverse Proportions
Sample Question
If ^@ x:y = 3:8 ^@ and ^@ 8:x = 1:3, ^@ then what is the value of ^@y?^@
A.
^@ 64 ^@
B.
^@ 66 ^@
C.
^@ 63 ^@
D.
^@ 73 ^@
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Factorisation
Sample Question
Find factors of polynomial (9a
2
+ 6ab + b
2
- 9c
2
).
A.
(3a - b + 3c) (3a + b - 3c )
B.
(3a + b - 3c) (3a + b - 3c )
C.
(3a + b + 3c) (3a + b + 3c )
D.
(3a + b + 3c) (3a + b - 3c )
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Introduction to Graphs
Sample Question
If you draw a straight line passing through points (4, 1) and (5, 2), find the point where line intersects with x-axis.
A.
(5, 0)
B.
(4, 0)
C.
(2, 0)
D.
(3, 0)
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Playing with Numbers
Sample Question
Find the value of A from following summation.
A
4
+
4
B
6
A
A.
2
B.
3
C.
1
D.
0
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Full Year 8th Grade Review
Sample Question
Simplify:
^@ \dfrac{ \left( 1 - \dfrac{ 1 }{ 2^2 } \right) \left( 1 - \dfrac{ 1 }{ 3^2 } \right) \left( 1 - \dfrac{ 1 }{ 4^2 } \right) \ldots \left( 1 - \dfrac{ 1 }{ 3957^2 } \right) } { \left( 1 - \dfrac{ 1 }{ 2 } \right) \left( 1 - \dfrac{ 1 }{ 3 } \right) \left( 1 - \dfrac{ 1 }{ 4 } \right) \ldots \left( 1 - \dfrac{ 1 }{ 3957 } \right) } ^@
A.
^@ 1979 ^@
B.
^@ 3088 ^@
C.
^@ 2272 ^@
D.
^@ 2150 ^@
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Profit-Loss and Discounts
Sample Question
A shopkeeper buys 15 rackets for $31500. If he sells them for a profit of 10%, find the selling price of one racket.
A.
$2310
B.
$2541
C.
$2772
D.
$1848
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Simple Interest
Sample Question
How long will it take for an amount to become 5 times of itself at 10% per annum simple interest?
A.
38 years
B.
40 years
C.
42 years
D.
41 years
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Compound Interest
Sample Question
Find compound interest on $300 for 6 months at 16% per annum compounded half yearly.
A.
$21.6
B.
$24
C.
$55
D.
$26.4
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Multiplication of Polynomials
Sample Question
Simplify the following polynomial expressions:
[(
4
x
2
- 3
x
+ 3
) × (
x
2
+
x
+ 3
)] - (
5
x
2
-
x
- 1
)
A.
7
x
2
+ 5
x
- 10
B.
7
x
2
+ 5
x
+ 10
C.
7
x
2
- 5
x
- 10
D.
4
x
4
+
x
3
+ 7
x
2
- 5
x
+ 10
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Division of Polynomials
Sample Question
Simplify: (4x
2
+ 12xy + 9y
2
- 9z
2
) ÷ (2x + 3y + 3z)
A.
(2x - 3y + 3z )
B.
(2x + 3y + 3z )
C.
(2x + 3y - 3z )
D.
(2x - 3y - 3z )
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Data Handling-Probability Statistics
Sample Question
Assume you roll a die 3 times. What is the probability that you will get exactly one 6?
A.
73
36
B.
75
216
C.
78
216
D.
81
216
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE
Logical Reasoning
Sample Question
Xiao folds the pattern shown below to form a cube. After folding, which letter will be opposite to the letter 'B'?
A
E
B
F
C
D
A.
C
B.
D
C.
A
D.
F
New Student Assignment
New Worksheet
New Online Test
Unlimited Online Practice
EXPLORE