When evaluating an expression with multiple variables, what is the correct first step?

Perform all multiplication and division operations.

Calculate any exponents or roots.

Substitute all given variable values at the same time.

Add and subtract all terms from left to right.

Evaluating Multi-Variable Expressions Practice — Grade 4 amc_math

1. Evaluate the expression $4a - 2b + c$ when $a = 3$, $b = -5$, and $c = 2$. The value is ___.
2. What is the value of the expression $m n^2 - \frac{p}{m}$ for $m = 4$, $n = -3$, and $p = 16$?
- A. 32
- B. -40
- C. 40
- D. 20
3. Find the value of $x^2 + 5yz$ when $x = -4$, $y = 2$, and $z = \frac{1}{2}$. The result is ___.
4. When evaluating an expression with multiple variables, what is the correct first step?
- A. Perform all multiplication and division operations.
- B. Calculate any exponents or roots.
- C. Substitute all given variable values at the same time.
- D. Add and subtract all terms from left to right.
5. Evaluate the expression $2(x+y) - z^2$ for $x=5$, $y=-2$, and $z=-3$. The value is ___.
6. Evaluate the expression: $6 + 3(5) - 1 = \_\_\_$.
7. Evaluate the expression: $10 - 2(3) = \_\_\_$.
8. To overturn a governor's veto, $\frac{2}{3}$ of the assembly members present must vote for the bill. If 96 members are present, how many votes are needed to overturn the veto? ___
9. Evaluate the expression: $8(7) - 6(5) = \_\_\_$.
10. Evaluate the expression: $32 - 4 \times 5 = \_\_\_$.