Writing Expressions from Word Problems

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

How do you write an expression for a total cost?

Back

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Back

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How do you express a quantity that is 'fewer' than another quantity?

Back

Front

What is the expression for total earnings if someone earns a fixed amount per week?

Back

Front

How do you express a temperature that is colder than another temperature?

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Front

What is the first step in writing an expression from a word problem?

Back

The first step is to identify the quantities involved and how they relate to each other, including any fixed costs and variable costs.

Front

How do you represent a total cost that includes both fixed and variable components?

Back

To represent total cost, add the fixed cost to the variable cost multiplied by the number of items. For example, total cost = fixed cost + (variable cost per item * number of items).

Front

What is the difference between an equation and an expression?

Back

An expression represents a value and does not have an equality sign, while an equation states that two expressions are equal and includes an equality sign.