7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - родроХро╡ро▓рпН роЪрпЖропро▓ро╛роХрпНроХроорпН Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - родроХро╡ро▓рпН роЪрпЖропро▓ро╛роХрпНроХроорпН Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - ро╡роЯро┐ро╡ро┐ропро▓рпН Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - ро╡роЯро┐ро╡ро┐ропро▓рпН Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - ро╡роЯро┐ро╡ро┐ропро▓рпН Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365 Set C
Published on: 02/11/2019
Term 2 Algebra
Download Tamil Nadu 7th Standard Maths question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Maths Test1.
The two adjacent sides of a rectangle are 2x2 − 5xy + 3z2 and 4xy − x2 − z2 . Find the perimeter and the degree of the expression.
2.
Simplify and find the degree of 6x2 + 1 - [8x - {3x2 - 7 - (4x2 - 2x + 5x + 9)}]
3.
Find the value of w, given that x = 3 , y = 4 , z = −2 and w = x2 − y2 + z2 − xyz .
4.
Find the unit digit of 124128 x 126124.
5.
62 x 6m = 65, find the value of ‘m’.
6.
Find the degree of the following terms.
3z
7.
Find the degree of the following terms.
−125
8.
Find the unit digit of expanded form.
4615
9.
Find the unit digit of expanded form.
1110
10.
Simplify using laws of exponents.
256 x 56
11.
Simplify using laws of exponents.
3y x 12y
12.
Find the value of the following.
(−4)2
13.
Simplify the following.
52 x104
14.
Express each of the following numbers using exponential form.
343
15.
Express each of the following numbers using exponential form.
512
1.
Perimeter of Rectangle
= 2(l + b)
Degree of 2x2 = 2
Degree of - 2xy = 2
Degree of 4z2 = 2
Degree of Expression = 2
2.
\(6 x^{2}+1-\left[8 x-\left\{3 x^{2}-7-\left(4 x^{2}-2 x+5 x+9\right)\right\}\right]
\)
\(=6 x^{2}+1-\left[8 x-\left\{3 x^{2}-7-4 x^{2}+2 x-5 x-9\right\}\right]
\)
[BODMAS]
= 6x2 + 1 -[11x + x2 + 16]
6x2 + 1 - 11x - x2 -16
= (6x2 - x2 ) - 11x + (1 - 16)
= 5x2 - 11x -15
3.
X = 3,y = 4, Z = -2
w = x2 - y2 + z2 - xyz
= (3)2 - (4)2 + (-2)2 -3 x 4 x (-2)
= 9 - 16 + 4 + 24 = 21
4.
Unit digit of base 124 is 4 and power is 128 (Even number).
So, the unit digit of 124128 is 6.
Unit digit of base 126 is 6 and power is 124 (Even number).
So, the unit digit of 126124 is 6.
= unit digit of (6 x 6) = 6
So, Unit digit of124128 x 126124 is 6.
5.
\(6^{2} \times 6^{\mathrm{m}} =6^{5}
\)
\(6^{\mathrm{m}} =\frac{6^{5}}{6^{2}}=6^{5-2}=6^{3} \Rightarrow \mathrm{m}=3\)
6.
Degree 1
7.
Degree 0
8.
Unit digit of base 46 is 6 and power is 15 (Odd number).
Thus, the unit digit of 4615 is 6.
9.
Unit digit of base 11 is 5 and power is 10 (Even power).
Thus, the unit digit of 1110 is 1.
10.
(25 x 5)6= 1256
11.
(3 x 12)y = 36y
12.
(-4) x (-4)= 16
13.
5 x 5 x 10 x 10 x 10 x 10
25 x 10000 = 250000
14.
15.
7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЕро│ро╡рпИроХро│рпН Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЕро│ро╡рпИроХро│рпН Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
