Grade 7 Mathematics โ Algebraic expressions Quiz
1. Simplify. 7y + 8x - 4y + 6x.
2. Kelvin has x books, Eunice has y books and Jose has z books.How many books do they have altogether?
3. A school has a male teachers,b female teachers,c boys and d girls.How many people are in the school altogether?
4. Form an algebraic expression from the statement below. q added to twice p.
5. Form an algebraic expression from the statement below. A jug holds 3litres less than a jerrican.If the jerrican holds y litres,what is the capacity of the jug?
6. Form an algebraic expression from the statement below. b added to 7
7. Form an algebraic expression from the statement below. k subtracted from thrice m.
8. Form an algebraic expression from the statement below. Twice y added to b and the result multiplied by 7.
9. The width of a rectangle is y cm and the length is 5cm more than the width.What is the perimeter of the rectangle?
10. Simplify. 3(4x + 4y) + 2(3x - 4y)
11. Form an algebraic expression from the statement below. 6 more than a
12. Form an algebraic expression from the statement below. 12 less than y
13. Form an algebraic expression from the statement below. m divided by 3 .
14. Form an algebraic expression from the statement below. w divided by the sum of w and 12.
15. Simplify. 2p + 5p + 6p
16. Simplify. 4t + 6 - 2t
17. How many terms are in the algebraic expression? 2y + x + 4
18. An algebraic expression has an equals sign.
19. Identify the coefficient in the expression. 6y + 7
20. Identify the constant in the expression. 2y + x + 8 + 7p
21. How many terms are in the expression? 3x + 7+ p - 12
22. How many variables are in the equation? 7y + 2x + 8 = 29
23. Identify the constant in the expression. 2y + 5x + 12
24. The product of 7 and j increased by 3.
25. The quotient of a number and 8.
26. Three times a number increased by nine.
27. g divided by 9.
28. The product of 15 and c.
29. Write the phrase as an expression. "the product of a number m and 23".
30. A combination of numbers, variables and operations with no equal sign is called.......
31. What is the definition of a coefficient?
32. In this expression, 2x + 6y - 10, which are the coefficients?
33. What is the definition of a constant?
34. In this equation, 4a - 10 = 9a, which is the constant?
35. In this term, 3abc, what are the variables?
36. What is a number multiplied by a variable?
37. What is a Term?
38. Simplify: 5x - 6x - 8x + 7
39. Simplify: -1x + y - z + 10z + 2x - 10y
40. Let: x= 2 y= 4 z= -5 Evaluate: 2xz
41. Let: a= -2 b= 3 c= -4 Evaluate: ab + ac
42. Let: x= -3 y= 4 z= -5 Evaluate: 2y - 5x
43. What is a good Verbal phrase for the following equation: 7 (x-2) = 18
44. Simplify using the product notation: 5 x 8y x 3z
45. Simplify the expression: 4y - 2y + 3y
Combining like terms, we get 4y - 2y + 3y = 5y
46. Evaluate the expression when x = 2: 2x + 5
Substitute x = 2 into the expression, we get 2(2) + 5 = 4 + 5 = 9
47. If 5x - 7 = 13, what is the value of x?
Add 7 to both sides of the equation: 5x - 7 + 7 = 13 + 7, then simplify to get 5x = 20. Divide by 5 on both sides: x = 4
48. Expand and simplify the expression: (2x + 3)(4x + 1)
Use the distributive property to multiply each term in the first expression by each term in the second expression, then combine like terms: 2x*4x + 2x*1 + 3*4x + 3*1 = 8x^2 + 2x + 12x + 3 = 8x^2 + 11x + 3
49. Simplify the expression: 6a^2 + 4a^2 - 3a
Combine like terms: 6a^2 + 4a^2 - 3a = 10a^2 - 3a
50. Which expression is equivalent to 2x(3x - 5)?
Use the distributive property to multiply 2x by each term inside the parentheses: 2x(3x - 5) = 2x*3x - 2x*5 = 6x^2 - 10x
51. What is the simplified form of 4(x + 2) - 3(2x - 1)?
Distribute and simplify the equation: 4(x + 2) - 3(2x - 1) = 4x + 8 - 6x + 3 = -2x + 11. Rearrange terms to get 5x + 11
52. What is the simplified form of the algebraic expression 3x + 2x - 5?
Combining like terms, 3x + 2x = 5x. Therefore, the simplified form is 5x.
53. Which of the following is equivalent to the expression 2a + 3b - 4a?
Combining like terms, 2a - 4a = -2a. Therefore, the equivalent expression is -2a + 3b.
54. Simplify the expression 4x - 3(2x - 5)
Distribute the negative 3 to both terms within the brackets: 4x - 6x + 15. Therefore, the simplified form is 4x - 6x + 15.
55. If a = 4 and b = 2, what is the value of the expression 3a - 2b?
Substitute the values of a and b into the expression: 3(4) - 2(2) = 12 - 4 = 8. Therefore, the value is 8.
56. What is the simplified form of the expression 5(2x - 3) + 4(3x + 2)?
Distribute and combine like terms: 10x - 15 + 12x + 8 = 22x - 7. Therefore, the simplified form is 22x - 7.