CBSE Class 8 Mathematics Worksheets/Part 3/Yearly Examination

CBSE Class 8 Mathematics Worksheets is about some model questions that you can expect for yearly examination. Here you can find out practice problems for class 8 Mathematics.

CBSE CLASS 8 MATHEMATICS/WORKSHEETS/Part 3/Yearly Examination.
Model Questions for Yearly Examination
Fill in the blanks:

1. The ratio of 50 paise to 5 rupees is —————–
2. The cube root of 2744 is —————-
3. The area of a rectangle with length and breadth as monomials 10m and 5n respectively are —————
4. A monomial multiplied by a monomial always gives a ————–
5. The lateral surface area of a cuboid is given by ———
   Answer the following:
6. Add a- b+ ab, b – c + bc, c – a + ac
7. Use the identity find 95 x 103?
8. Find the common factors of 10pq, 20qr, 30rp
9. The price of a scooter was 34000 rupees last year. It has increased by 20% this year. What is the price now?
10. What will be the unit digit of the squares of the following numbers?
    a) 5467
    b) 6523

ANSWERS:

1. 1:10
2. 14
3. 50mn
4. Monomial
5. 2h (l + b)
6. a – b + ab + b – c + bc + c – a + ac
   Combining like terms we get a – a – b + b – c + c + ab + bc + ac = ab + bc + ac
7. 95 x 103 = (100 – 5) x (100 + 3)
   = 100 x 100 + (-5 + 3) x 100 + (-5) x 3
   = 10000 – 200 – 15
   = 9785
8. 10pq= 1 x 10pq
   20qr = 2 x 10qr
   30rp = 3 x 10rp
   The common factor is 10.
9. 20% of 34000 = 20 x 34000/100 = 6800 rupees
   New price = Old price + Increase = 34000 + 6800 = 40800 rupees
10. a) Since 7 x 7 = 49, the unit digit of the squares of 5467 will be 9.
    b) Since 3 x 3 = 9, the unit digit of the squares of 6523 will be 9.