User:Estrella Tuguinay/Maths Practice Test for FODE Students in PNG

Dear FODE Students ,

Below is a set of Practice Exercises to revise you of the topic Equations in Mathematics 8. After the exercises are the answers for you to check yoour work. Try to solve all questions as possible. Hope you enjoy doing this Pratice Exercises.

A. MULTIPLE QUESTIONS : Choose your answer from the alternative A , B, C, D.

Start here:

1. Combine similar terms in the expression 2mn + 5m - mn - 7m.

A. mn - 2m

B. 3mn + 2m

C. mn - m

D. m + n

2. What is the common factor in the expression 2a⁴b²+ 6ab?

A. 2

B. 2ab

C. 2a²b²

D. 6ab

3. Evaluate 2x³y²z if x = 3 , y = -2 , z = 1/2.

A. -98

B. 98

C. 108

D. -108

4. Solve for the value of x in the equation 3x + 7 = 2x - 18.

A. -25

B. 25

C. -35

D. 35

5. Factorise completely a² + 2a - 14 .

A. (a+2)(a-7)

B. (a+7)(a-2)

C. (a-2)(a-7)

D. (a+2)(a+7)

6. If m = 2/3 , n = 1/2 , p = -1/4, evaluate 4m²n³p.

A. 1/3

B. 1/4

C. 1/9

D. 1/18

7. Solve the equation 2a² + a - 4 = a² + 2a - 3

A. a = 2 ; a = 1

B. a = -2 ; a = -1

C. a = -2 ; a = 1

D. a = 2 ; a = -1

8. Find the product of 2/3x²y³ and 1/4x⁷y².

A. 1/2x⁹y⁵

B. 1/6x⁹y⁵

C. 1/2x⁵y⁹

D. 1/6x⁹y⁵

9. Find the quotient of 2x⁷y³ and 4x²y.

A. 1/2 x⁵y²

B. 2x⁵y²

C. 1/2 x²y⁵

D. 2 x²y⁵

10. Perform the order of operation in the equation [-5x + (-3x)] / [{2(3x)-4x -7x}.

A. -8/5 x

B. -8/5

C. 8/5 x

D. 8/5

KEY ANSWERS:

1. A 2. B 3. D 4. A 5. B 6. D 7. D 8. B 9. A 10.D