WRITE 15 HARD MATH QUESTION FOR 8TH GRADE
1. Solve for x: 4x + 8 = 3x - 6.
2. Evaluate the expression: (3 + 4) x (2^2 - 1).
3. Simplify the expression: (2x^2 - 3x + 4) + (-x^2 + 2x -1).
4. Find the missing angle in a triangle where the other two angles measure 60° and 80°.
5. Solve the inequality: 2x - 5 > 3x + 4.
6. Find the volume of a rectangular prism with length 5 cm, width 3 cm and height 10 cm.
7. Simplify the expression: (2a^2b - 3ab^2) / ab.
8. Solve the equation: 2(3x - 4) = 5x + 12.
9. The perimeter of a rectangle is 36 cm. If the width is 4 cm, what is the length?
10. Solve the equation: 3/4x + 1/2 = 1.
11. Find the surface area of a cylinder with radius 4 cm and height 6 cm.
12. Simplify the expression: (5x^2 - 2x + 3) - (3x^2 - 4x + 1).
13. Solve for x: 2(x + 3) = 5(x - 1).
14. Find the area of a trapezoid with bases measuring 8 cm and 12 cm, and height 7 cm.
15. Simplify the expression: (2x^3 - 4x^2 + 5x) / (x^2 - 3x + 2).
Here are 15 challenging math questions for 8th grade:
1. Simplify the expression: 5x^2 + 3x^2 - 2x^2.
2. Solve the equation: 3(x - 4) = 7 - 2(x + 1).
3. Find the perimeter of a rectangle with length 8 cm and width 5 cm.
4. Expand and simplify: (2a - b)^2.
5. Solve for x: 4(2x - 3) = 7x - 5.
6. Find the value of x in the equation: √(3x + 7) = 5.
7. Find the area of a circle with radius 6 cm.
8. A bag contains 3 red marbles, 5 green marbles, and 2 blue marbles. If a marble is drawn at random, what is the probability of it being blue?
9. Solve the equation for y: 6x + 2y = 24.
10. Find the solution set for the inequality: 3x + 4 ≤ 9 + 2x.
11. A car travels at a speed of 50 mph. How long does it take to travel 200 miles?
12. Find the missing length in a right triangle with one leg measuring 5 cm and the hypotenuse measuring 13 cm.
13. Simplify the expression: (2/3) - (1/2) + (3/4).
14. Solve the equation: 2(3x + 1) = 8 - 4x.
15. Find the volume of a rectangular prism with length 6 cm, width 4 cm, and height 9 cm.
Remember to show your work and explain your steps when solving these problems!