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Questions and Answers
What is the result of the expression $c · c ÷ 4$ when $c = 5$?
What is the result of the expression $c · c ÷ 4$ when $c = 5$?
- 30
- 6.25
- 25 (correct)
- 1
Evaluate $u + 4u$ for $u = 6$. What result do you get?
Evaluate $u + 4u$ for $u = 6$. What result do you get?
- 20
- 18
- 30 (correct)
- 12
What is the value of $2b - b$ when $b = 9$?
What is the value of $2b - b$ when $b = 9$?
- 18
- 9 (correct)
- 0
- 27
Calculate the expression $7b ÷ b$ for $b = 2$. What is the result?
Calculate the expression $7b ÷ b$ for $b = 2$. What is the result?
What is the outcome of $6 - x ÷ 6$ when $x = 7$?
What is the outcome of $6 - x ÷ 6$ when $x = 7$?
Evaluate $10 + 2 - x$ for $x = 6$. What result do you obtain?
Evaluate $10 + 2 - x$ for $x = 6$. What result do you obtain?
What value does the expression $(10 + y) ÷ y$ yield when $y = 9$?
What value does the expression $(10 + y) ÷ y$ yield when $y = 9$?
If $z = 1$, what is the value of $z ÷ (8 - z)$?
If $z = 1$, what is the value of $z ÷ (8 - z)$?
What is the result of the expression $6 - u \cdot u$ when $u = 2$?
What is the result of the expression $6 - u \cdot u$ when $u = 2$?
Evaluate $8 - \frac{c}{c}$ when $c = 3$. What is the result?
Evaluate $8 - \frac{c}{c}$ when $c = 3$. What is the result?
What is the value of the expression $\frac{2 \cdot z}{3}$ when $z = 10$?
What is the value of the expression $\frac{2 \cdot z}{3}$ when $z = 10$?
What value does the expression $(9 - y) \div 7$ yield if $y = 8$?
What value does the expression $(9 - y) \div 7$ yield if $y = 8$?
What is the outcome of the expression $6z \div z$ when $z = 5$?
What is the outcome of the expression $6z \div z$ when $z = 5$?
Calculate $(9 \div u)^3$ for $u = 9$. What is the result?
Calculate $(9 \div u)^3$ for $u = 9$. What is the result?
Evaluate the expression $(x - 2)^2$ when $x = 3$. What is the answer?
Evaluate the expression $(x - 2)^2$ when $x = 3$. What is the answer?
What is the result of $\frac{8 - x}{6}$ when $x = 4$?
What is the result of $\frac{8 - x}{6}$ when $x = 4$?
What is the result of evaluating $3 + 4v$ when $v = 3$?
What is the result of evaluating $3 + 4v$ when $v = 3$?
If $b = 4$, what is the value of $b·b - b$?
If $b = 4$, what is the value of $b·b - b$?
What is the value of $(c·c)^{2}$ when $c = 2$?
What is the value of $(c·c)^{2}$ when $c = 2$?
Evaluate $6 + 10 + u$ when $u = 8$.
Evaluate $6 + 10 + u$ when $u = 8$.
What is the value of $v·2v$ when $v = 7$?
What is the value of $v·2v$ when $v = 7$?
If $a = 9$, what is the result of $4a ÷ 7$?
If $a = 9$, what is the result of $4a ÷ 7$?
What is the value of $9 - (v + 2)$ when $v = 7$?
What is the value of $9 - (v + 2)$ when $v = 7$?
Which value is obtained for $b ÷ (b - 1)$ when $b = 7$?
Which value is obtained for $b ÷ (b - 1)$ when $b = 7$?
What is the result of the expression $8 \cdot 9 - b$ when $b = 4$?
What is the result of the expression $8 \cdot 9 - b$ when $b = 4$?
Evaluate the expression $7 \cdot 9 + v$ when $v = 10$. What is the outcome?
Evaluate the expression $7 \cdot 9 + v$ when $v = 10$. What is the outcome?
What is the value of the expression $u - 8 \div 3$ when $u = 4$?
What is the value of the expression $u - 8 \div 3$ when $u = 4$?
What does the expression $(7 + u) \cdot u$ evaluate to when $u = 1$?
What does the expression $(7 + u) \cdot u$ evaluate to when $u = 1$?
Calculate the value of the expression $10 \div (b + 10)$ where $b = 1$.
Calculate the value of the expression $10 \div (b + 10)$ where $b = 1$.
What is the result of $b + 1 + 4$ when $b = 6$?
What is the result of $b + 1 + 4$ when $b = 6$?
Evaluate the expression $y \div (y \div y)$ with $y = 6$. What is the outcome?
Evaluate the expression $y \div (y \div y)$ with $y = 6$. What is the outcome?
What is the outcome of $(v - 3) \cdot 8$ with $v = 7$?
What is the outcome of $(v - 3) \cdot 8$ with $v = 7$?
What is the result of evaluating the expression $10 + 8 ÷ u$ when $u = 7$?
What is the result of evaluating the expression $10 + 8 ÷ u$ when $u = 7$?
Calculate the expression $b ÷ (4 ÷ 4)$ when $b = 10$.
Calculate the expression $b ÷ (4 ÷ 4)$ when $b = 10$.
Evaluate the expression $6 · 10 - y$ when $y = 5$.
Evaluate the expression $6 · 10 - y$ when $y = 5$.
What is the result of $2u - u$ when $u = 1$?
What is the result of $2u - u$ when $u = 1$?
What is the value of $2 - (y - y)$ when $y = 8$?
What is the value of $2 - (y - y)$ when $y = 8$?
Evaluate the expression $9(x - 2)$ when $x = 7$.
Evaluate the expression $9(x - 2)$ when $x = 7$.
What is the output of $8 + v - v$ when $v = 5$?
What is the output of $8 + v - v$ when $v = 5$?
Calculate $2 - (x - x)$ when $x = 2$.
Calculate $2 - (x - x)$ when $x = 2$.
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Study Notes
Evaluating Expressions
- The expressions are presented as mathematical problems with variables like a, b, c, u, v, x, y, z.
- Each expression has a value assigned to each variable.
- Solving the expression requires plugging the value of the variable into the expression.
- These expressions need to be solved in a specific order:
- Parentheses first, then exponents, followed by multiplication and division (from left to right), finally addition and subtraction (from left to right).
Example Expressions
- Evaluating
9c · 2whenc = 1results in9 · 1 · 2 = 18. - Evaluating
3b ÷ 5whenb = 8results in3 · 8 ÷ 5 = 24/5. - Evaluating
v³ ÷ vwhenv = 8results in8³ ÷ 8 = 64 ÷ 8 = 8. - Evaluating
(c · c)²whenc = 2results in(2 · 2)² = 4² = 16.
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