Algebra – CBSE Class 6 Mathematics/Extra Questions for Practice

Algebra CBSE Class 6 Mathematics/Extra Questions for Practice is about the Model Questions that you can expect for Yearly Examination. Here you can find out practice problems for Class 6 Mathematics. This worksheet is designed for CBSE Class 6 students.

Algebra – CBSE Class 6 Mathematics/Extra Questions for Practice
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Answer the following:

1. ‘x multiplied by 10’ can be written as ——————
   Answer: 10x
2. ’10 is added to x’ can be written as —————–
   Answer: 10 + x
3. If x = 2, find the value of 10x?
   Answer:
   10x = 10 x 2 = 20
4. Perimeter of a square of side length l is —————
   Answer: 4l
5. If x =3, find the value of 4x + 5?
   Answer:
   4x + 5 = 4 x 3 + 5 = 12 + 5 = 17
6. Write an algebraic expression for: ‘m multiplied by 3 and 2 subtracted from the product’
   Answer: 3m – 2
7. Find the solution of n – 4 = 100?
   Answer:
   n = 100 + 4 = 104
8. Solve 20b = 80
   Answer:
   b = 80/20 = 4
9. Solve:
   a) 2l + 3 = 7
   b) 2m – 3 = 5
   c) 3n = 21
   Answer:
   a) 2l = 7 – 3 = 4
   l = 4/2 = 2
   b) 2m = 5 + 3 = 8
   m = 8/2 = 4
   c) n = 21/3 = 7
10. If m = 3, find the value of 2m – 3?
    Answer:
    2m – 3 = 2 x 3 – 3 = 6 – 3 = 3
11. Write an algebraic expression for: ‘sum of m and n subtracted from their product’
    Answer: mn – (m + n)
12. ‘3 is subtracted from the product of a and b’ can be written as—–
    Answer: ab – 3
13. Find the general rule which gives the number of matchsticks required to make a pattern of letter Z?
    Answer: 3n
14. If the length of a side of a regular hexagon is y cm, then its perimeter is ————–
    Answer: 6y
15. 5 times a number is 35. Find the number?
    Answer:
    Let the number be y.
    Given 5y = 35
    y = 35/5 = 7
16. If x = 2 and y = -1, evaluate 3x – y?
    Answer:
    3x – y = 3 x 2 – (-1) = 6 + 1 = 7
17. If 2x – 3 = 5, then the value of x is ———-
    Answer:
    2x = 5 + 3 = 8
    x = 8/2 = 4
18. If you take away 5 from 5 times a number, you get 50. Find the number?
    Answer:
    Let the number be y.
    5y – 5 = 50
    5y = 50 + 5 = 55
    y = 55/5 = 11
19. If a = -1, b = -2, find the value of ab – (a + b)?
    Answer:
    ab – (a + b) = (-1) x (-2) – (-1 + -2) = 2 – (-3) = 2 + 3 = 5
20. If x – 4 = 4, find the value of x?
    Answer:
    x – 4 = 4 , x = 4 + 4 = 8