Question

Q1. Fill in the blanks- ( 1 mark each)

1 .An expression containing three terms is called a _________.

2 .Numerical coefficient of term -4

2

2



2

is _____.

3. Area of a rhombus is _______ the product of its diagonals.

4. Amount of space occupied by a three dimensional object is called its ________.

5. 1L = ________.

6. Speed of a vehicle and the time taken to cover a fixed distance changes are _______ proportional.

7. Two quantities x and y are said to be in direct proportion , if they increase in such a manner that the

ratio of their corresponding values remains ______.

8. Common factors of 6 , 24

2, 12

2

is ________.

9. (a + b) ( a – b) = ______.

10. Volume of rectangular box if length = a, breadth = -

2

and height =

3

is_______.

Q2. Do as directed: ( 2 marks each)

a) Subtract : 3

2

-

1

3

a +1 from 7

3



2 + 7 -8.

b) Simplify: 3 + ( − ) + ( − ) + ( − ) .

c) Write an algebraic expression of :

i) Monomial

ii) Binomial

iii) Trinomial

iv) Degree 3

d) Find the total surface area of a cuboidal tank whose dimensions are 9cm x 7cm x 5.5cm.

e) If 120 washing powder packets can be packed in 20 cartons .How many washing powder

can be packed in 35 cartons.

Q3. Solve the following: (10 marks)

a) Divide (5

2 − 80) 5( + 4).

b) Find and correct the error in the given mathematical statement: ( − 3)

2 =

2 – 9.

c) Factorise :

4

- 625.

d) Show that : ( 4 + 3)

2 – (4 − 3)

2 = 482

.

e) Use identity to find:

i) 712 x 692

ii) 95 103

Q4. Word problems :( 5 marks each)​

Answer 1

Answer:

ohh so long the question is