# Math Expressions Unit 4

Flashcards by bschmitz, updated more than 1 year ago
 Created by bschmitz about 7 years ago
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### Description

Equations and Word Problems

## Resource summary

 Question Answer A statement that two expressions are equal. It has an equal sign. Ex.: 32 + 45 = 77 (4 x 5 -2) / 6 = 3 Equation One or more numbers, variables, or numbers and variables with one or more operations. Ex.: 8 - x 12 + 5 Expression Combine like terms and perform operations until all terms have been combined. Ex.: n + 5n combined would be 6n Simplify an expression Substitute a value for a letter (or symbol) and then simplify the expression. Ex.: a = 4 18 - (a + 5) = ___ Evaluate The result of subtracting. Difference The answer when adding two or more addends. Sum An equation that shows the structure of the information in a problem. Situation equation An equation that shows the operation that can be used to solve the problem. The variable is all alone. Solution equation A pair of whole numbers whose product is that number. Factor pair Describe quantities as greater than, less than, or equal to each other. Compare Bars that represent the larger amount and smaller amount in a situation. Comparison bars

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