If you're seeing this message, it means we're having trouble loading external resources on our website.

Pokud používáš webový filtr, ujisti se, že domény: *.kastatic.org and *.kasandbox.org jsou vyloučeny z filtrování.

Hlavní obsah

STANDARDS

 > 

US-NY

Math

New York Math

Grade 7: Expressions, Equations, and Inequalities

Use properties of operations to generate equivalent expressions.

NY-7.EE.1

Fully covered
Add, subtract, factor, and expand linear expressions with rational coefficients by applying the properties of operations.

NY-7.EE.2

Fully covered
Understand that rewriting an expression in different forms in real-world and mathematical problems can reveal and explain how the quantities are related.

Solve real-life and mathematical problems using numerical and algebraic expressions, equations, and inequalities.

NY-7.EE.3

Fully covered
Solve multi-step real-world and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate. Assess the reasonableness of answers using mental computation and estimation strategies.

NY-7.EE.4

Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.

NY-7.EE.4.a

Mostly covered
Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach.

NY-7.EE.4.b

Fully covered
Solve word problems leading to inequalities of the form px + q > r, px + q ≥ r, px + q ≤ r, or px + q < r, where p, q, and r are rational numbers. Graph the solution set of the inequality on the number line and interpret it in the context of the problem.