Home > Middle School > Quizzes > Grades 6, 7 and 8 - Math - Middle School - Algebra - Putting Numbers in Place of Letters
Grades 6, 7 and 8 - Math - Middle School - Algebra - Putting Numbers in Place of Letters
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Avg score: 66% • Most missed: “If x = 5 and y = 10, what is the value of xy / 10”

In algebra, letters, such as a and b, are used in place of numbers.  If the values of the letters are known then it is important to be able to replace the letters with numbers.
 

Grades 6, 7 and 8 - Math - Middle School - Algebra - Putting Numbers in Place of Letters
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10 Questions

1. If a = 4 and b = 8, what is the value of 2a + x2
2. If x = 9 and y = 23, what is the value of y - x?
3. If x = 6 and y = 7, which of the following gives a value of 55
4. If x = 5 and y = 10, what is the value of xy / 10
5. If a = 4 and b = 5, what is the value of 2a + b
6. If a = 4 and b = 2, what is the value of a2 / b?
7. If a = 2 and b = 3, what is the value of a + b + a?
8. If a = 6 and x = 8, which of the following gives a value of 22?
9. If a = 2, b = 3, c = 4 and d = 5, what is the value of 2a + 3b + c2 - d
10. If x = 2 and b = 4, what is the value of x2 + b2?

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