Algebraic Expressions And Identities Class 8 Practice Paper PDF
Document Details
Uploaded by MesmerizingEuphonium
B.I.S Group of Institutions
2023
Kendriya Vidyalaya
M. S. KumarSwamy
Tags
Summary
This is a practice paper from the Kendriya Vidyalaya for Class 8 mathematics covering algebraic expressions, identities and their applications. Practice Paper 05 from the year 2023-2024 is focused on the topic of Algebraic Expressions and Identities. The paper features various algebraic expression problems and evaluation exercises.
Full Transcript
KENDRIYA VIDYALAYA GACHIBOWLI, GPRA CAMPUS, HYD–32 PRACTICE PAPER 05 (2023-24) ALGEBRAIC EXPRESSIONS AND IDENTITIES SUBJECT: MATHEMATICS MAX. MARKS : 30 CLASS : VIII...
KENDRIYA VIDYALAYA GACHIBOWLI, GPRA CAMPUS, HYD–32 PRACTICE PAPER 05 (2023-24) ALGEBRAIC EXPRESSIONS AND IDENTITIES SUBJECT: MATHEMATICS MAX. MARKS : 30 CLASS : VIII DURATION : 1 hr SECTION – A (1 mark) 1. Add 7x² + 11x + 8 and 3x² - 6x - 7. 2. Find the product of 5x²y and -3x³y². 3. Find the product of a4b² and (2a²b)³. 4. Find the product of 3x and 7x + 2. 5. Find the product of - 5m² and 4m² - 2m + 7. SECTION – B (2 marks) 6. Simplify: 5x³ + 6x² + 3x − (−2x³ + 7x² + 3x - 7) 7. Add 3x(7x2 – 5x+3) and 2(x3 – 4x2 + 5). 8. Multiply 2a + 3b by 7a -5b. 9. Multiply : (5a² - 2b) by (2a² - 3b). 10. Find the Square of 9x – 7xy. SECTION – C (3 marks) 11. Simplify : a²(b² - c²) + b²(c² - a²) + c²(a² - b²) 12. Subtract 4p2q – 3pq + 5pq2 – 8p + 7q – 10 from 18 – 3p – 11q + 5pq – 2pq2 + 5p2q 13. Use the identity (x + a) (x + b) = x2 + (a + b) x + ab to find the following products: (i) (4x + 5) (4x – 1) (ii) (2x + 5y) (2x + 3y) 14. Use a suitable identity to get each of the following products. (i) (2y + 5) (2y + 5) (ii) (2a – 7) (2a – 7) 15. Simplify the following expression and evaluate it for a = -1. 5a2(a – 2) – 2a3(a + 4) – 5a(a – 2) Prepared by: M. S. KumarSwamy, TGT(Maths) Page - 1 -
