Writing Expressions

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

What does it mean to write an expression for a word problem?

Back

Writing an expression for a word problem involves translating the words into a mathematical expression that represents the situation described.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol (like n or r) that represents an unknown value, while a constant is a fixed value (like 10 or 12).

Front

How do you represent '10 fewer than n' in an expression?

Back

The expression is n - 10.

Front

What does 'the sum of three and five' mean in mathematical terms?

Back

It means to add three and five, represented as 3 + 5.

Front

How do you express 'the difference of sixteen and two' mathematically?

Back

The expression is 16 - 2.

Front

What does 'the quotient of fifteen and three' mean?

Back

It means to divide fifteen by three, represented as 15 ÷ 3.

Front

How would you express 'the total number of objects fetched if Spot fetched 12 sticks and r rocks'?

Back

The expression is 12 + r.

Front

What is the mathematical representation of 'the product of three and five times seven'?

Back

The expression is (3 + 5) × 7.

Front

What does 'the difference of three and five times seven' mean?

Back

It means to subtract five from three and then multiply by seven, represented as (3 - 5) × 7.