Write the subtraction sentence - up to two digits

Learning Objectives Translate verbal phrases involving subtraction into algebraic expressions. Identify and apply the correct inequality symbol (>, <, ≥, ≤) based on contextual keywords. Construct a one-variable linear inequality from a real-world scenario that involves a subtraction operation. Model constraints in a problem using constants up to two digits within a subtraction-based inequality. Differentiate between a subtraction expression, a subtraction equation, and a subtraction inequality. Define the variable in a given problem and write a complete subtraction sentence as a linear inequality. You have $85 in your account and need to withdraw some cash. How can you write a mathematical sentence to make sure you have at least $20 left? 🏦 In this tutorial, we will...

TermDefinitionExample Linear InequalityA mathematical sentence that uses an inequality symbol (<, >, ≤, ≥) to compare two expressions, where the variable has an exponent of one.x - 15 > 40 Subtraction Sentence (Algebraic)A complete mathematical statement that models a situation where a quantity is taken away from an unknown value, resulting in a comparison.A starting amount 's' decreased by 25 is at most 50, written as s - 25 ≤ 50. VariableA symbol, usually a letter, that represents an unknown or changing quantity.In the sentence 'p - 10 > 22', 'p' is the variable. ConstantA fixed numerical value that does not change. In our problems, these will be numbers up to two digits.In 'x - 18 ≥ 75', the numbers 18 and 75 are constants. Inequality...

General Form: Subtraction Inequality x - a ≥ b This is the basic structure. 'x' is the initial unknown amount, 'a' is the quantity being subtracted, and 'b' is the value it's being compared to. The symbol (≥) can be replaced with >, <, or ≤ depending on the problem's context. Translation Rule: 'Decreased By' or 'Minus' 'A number x decreased by a' → x - a Use this rule when you see phrases like 'decreased by', 'minus', 'less', or 'take away'. The quantity being subtracted (a) comes after the minus sign. Translation Rule: 'Less Than' 'a less than a number x' → x - a Be careful with this phrasing. The number mentioned first in the s...