Basic Calculation Skills (JSS 2) Examination

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Welcome to your Basic Calculation Skills (JSS 2) Examination

1. The LCM of 2ab and 4ac is

2. The HCF of 2×3², 2³×3 and 2×3×7 is

3. ⅓ = 6/x, x = ?

4. 176/300 as percentage is

5. 45% to fraction in it's lowest term is

6. -x² + (-5x²) = ?

7. (-m) + (-3m) + (-15m) =

8. If y = -5, find y + 10

9. For this sentence " __+__+__= 24" true, which number fills the gap better

10. Amanda is x years old. Next year she will be 12years old. What is the value of x ?

11. If the two angels on a straight line are "3x and x", Find the value of x.

12. A carpenter has two pieces of wood, one piece of wood is 2y meter long and the other piece of wood is 3x+2y meter long. What is the

13. 360⁰ - 278⁰ forms

14. 180⁰ - 4⁰ forms

15. In a clock, the short hand on 3 and long hand on 12 forms

16. √9y²z⁴ =

17. √4x²y / √y

18. If the side of a cube is 4cm, then the volume of the cube is

19. Evaluate 2x² - 4xy² + xy² - 2x²

20. Chibuike was given 75% of N50,000, How much is that?

Subjective [(show working) 2marks each]

1. Solve (x/m - y/m) ÷ 3m/2x - my

2. Find the perimeter of this figure. Given: AB = 14mm, BC = 12mm, CA = 22mm

3. Expand and simplify 2(x+5)+3(x-2)

4. A textbook cost N10,000 and a mathematical set cost Nx. They cost N11,200 altogether. What is the value of x ?

5. Solve -3-9+8 on a number line

6. A student scored 90 marks out of 120. What percentage is this ?

7. How many composite numbers do we have from 0 - 10 ?

8. Give at least first five multiples of 7

9. If 1.2x = 24, find x

10. Express 10mins 40sec as a fraction of 2 hours

Theory (Answer All{5marks each}) Please show all working

Solve for x and y in : 3x + y = 11, 3x - 2y = -4, using the following methods ;

1. Substitution method

2. Elimination method

3. If ⅔(9x - 6)-4=9x-6, find the value of 3x² - 2

4. A rectangular prism has a volume of 7896mm³. If it's height and width are 22m and 33m, what is the length?

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