CBSE Class 8 Mathematics Worksheets/Part 1/ 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 6 Mathematics.

CBSE CLASS 8 MATHEMATICS WORKSHEETS/Part 1/Yearly Examination
Model Questions for Yearly Examination
Fill in the blanks:

1. If 3x + 5 = 20, then the value of x = ——————-
2. A regular polygon with 4 sides is ——————
3. The cube root of 216 is —————–
4. The product of 4pq and 0 is —————-
5. The volume of a cube with side 1.5 m is ————–
   Answer the following:
6. Three angles of a quadrilateral are 38, 64 and 135 degrees. Find the measure of the fourth angle?
7. 28% of 25 students are liked to play cricket. How many are liked to play cricket?
8. Find the area of a rhombus whose diagonals are of lengths 10 cm and 12.4 cm?
9. Solve 4x – 7 = 2(x – 2) + 7
10. Find and correct the errors in the mathematical statement 2(x – 7) = 2x – 7

ANSWERS:

1. 5
2. Square/Rhombus
3. 6
4. 0
5. 3.375 cubic metre
6. The sum of the measures of the four angles of a quadrilateral is 360 degree.
   Given measures are 38, 64 and 135 degrees.
   The measure of fourth angle is 123 degree
7. Number of students liked to play cricket = 28% of 25
   = 28 x 25/100
   = 28/4 = 7 students
8. Area of a Rhombus = Half of the product of its diagonals.
   Diagonals are given by 10 cm and 12.4 cm
   Therefore, area = ½ (10 x 12.4) = ½ x 124 = 62 square cm
9. 4x – 7 = 2 (x – 2) + 7
   4x – 7 = 2x – 4 + 7
   4x – 2x = -4 + 7 + 7
   2x = 10
   x = 10/2 = 5
10. 2(x – 7) = 2x – 14 is correct. We need to multiply two terms with in the bracket by 2.