# 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 ExaminationFill in the blanks:**

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

a) 5467

b) 6523

**ANSWERS:**

- 1:10
- 14
- 50mn
- Monomial
- 2h (l + b)
- 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 - 95 x 103 = (100 – 5) x (100 + 3)

= 100 x 100 + (-5 + 3) x 100 + (-5) x 3

= 10000 – 200 – 15

= 9785 - 10pq= 1 x 10pq

20qr = 2 x 10qr

30rp = 3 x 10rp

The common factor is 10. - 20% of 34000 = 20 x 34000/100 = 6800 rupees

New price = Old price + Increase = 34000 + 6800 = 40800 rupees - 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.