ISEE Lower Level Quantitative Reasoning Flashcards: One Step Equations

What this deck covers

This deck focuses on One Step Equations, giving you a quick way to review the definitions, rules, and examples that matter most for ISEE Lower Level Quantitative Reasoning.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What is $x$ if $\frac{x}{10} = \frac{3}{5}$?

Answer: $x = 6$. Multiply both sides by 10 to find $x$ in the fractional proportion.

Flashcard 2: Identify $x$ if $x + 0.4 = 1.1$.

Answer: $x = 0.7$. Subtract 0.4 from both sides to isolate $x$ in the decimal equation.

Flashcard 3: Identify $x$ if $x - 2.5 = 0.3$.

Answer: $x = 2.8$. Add 2.5 to both sides to solve for $x$ with decimals.

Flashcard 4: Find $x$ if $-x = 12$.

Answer: $x = -12$. Multiply both sides by -1 to isolate $x$ and reverse the sign.

Flashcard 5: What is $x$ if $\frac{x}{5} = \frac{7}{10}$?

Answer: $x = \frac{7}{2}$. Multiply both sides by 5 to isolate $x$ and obtain the fraction.

Flashcard 6: What is $x$ if $x + \frac{1}{3} = \frac{5}{6}$?

Answer: $x = \frac{1}{2}$. Subtract $\frac{1}{3}$ from both sides to isolate $x$ in the equation.

Flashcard 7: What is $x$ if $x - \frac{3}{4} = \frac{1}{8}$?

Answer: $x = \frac{7}{8}$. Add $\frac{3}{4}$ to both sides to solve for $x$ with fractions.

Flashcard 8: What is $x$ if $x + (-8) = 2$?

Answer: $x = 10$. Add 8 to both sides to isolate $x$, as adding the opposite of -8 balances the equation.

Flashcard 9: What is $x$ if $x - (-5) = -1$?

Answer: $x = -6$. Subtract 5 from both sides to isolate $x$, since subtracting a negative is adding.

Flashcard 10: What is $x$ if $\frac{x}{2} = 9$?

Answer: $x = 18$. Multiply both sides by 2 to solve for $x$ in the division equation.

Flashcard 11: What is $x$ if $\frac{x}{2} = -9$?

Answer: $x = -18$. Multiply both sides by 2 to isolate $x$ and handle the negative value.

Flashcard 12: Identify $x$ if $0.5x = 9$.

Answer: $x = 18$. Divide both sides by 0.5, equivalent to multiplying by 2, to solve for $x$.

Flashcard 13: What is $x$ if $\frac{x}{-3} = 8$?

Answer: $x = -24$. Multiply both sides by -3 to find the value of $x$.

Flashcard 14: What is $x$ if $x + 7 = 20$?

Answer: $x = 13$. Subtract 7 from both sides to isolate $x$ while keeping the equation balanced.

Flashcard 15: What is $x$ if $x - 9 = 4$?

Answer: $x = 13$. Add 9 to both sides to isolate $x$ and maintain the equation's equality.

Flashcard 16: What is $x$ if $x + 15 = 6$?

Answer: $x = -9$. Subtract 15 from both sides to solve for $x$ in the equation.

Flashcard 17: What is $x$ if $x - 12 = -3$?

Answer: $x = 9$. Add 12 to both sides to isolate $x$ and preserve balance.

Flashcard 18: What is $x$ if $5x = 35$?

Answer: $x = 7$. Divide both sides by 5 to find the value of $x$.

Flashcard 19: What is $x$ if $-4x = 28$?

Answer: $x = -7$. Divide both sides by -4 to solve for $x$ in the equation.

Flashcard 20: What is $x$ if $\frac{x}{6} = 5$?

Answer: $x = 30$. Multiply both sides by 6 to isolate $x$ and maintain equality.

Flashcard 21: What is $x$ if $\frac{x}{4} = -\frac{3}{2}$?

Answer: $x = -6$. Multiply both sides by 4 to solve for $x$ in the fractional equation.