### Writing Expressions

• In order to translate a word phrase into an algebraic expression, you translate the words into numbers and operation symbols.
•  Operation Key Words Addition sum, add, plus, increased by, more than Subtraction difference, subtract, minus, decreased by, less than Multiplication product, multiplied by, times Division quotient, divided by

## Duy is twice as old as his sister. Write an expression using Duy's age, D, to describe his sister's age, S.

• Let D = Duy's age. Let S = his sister's age.

## A kiwi costs 95 more cents than a lemon. Write an expression using the cost of the kiwi, K, to describe the cost of the lemon, L.

• Let K = cost of the kiwi. Let L = the cost of the lemon.

## David's age is three times 7 less than Michelle's age. Write an expression describing David's age, D, in relation to Michelle's, M.

• Let D = David's age . Let M = Michelle's age.

## Write an expression for the number of months in x years.

• In 1 year, there are 12 months.
• In x years, there are 12x months.

## Write an expression for the number of hours in y days.

• In 1 day, there are 24 hours.
• In y days, there are 24y hours.

## Write an expression for the number of seconds in z minutes.

• In 1 minute, there are 60 seconds.
• In z minutes, there are 60z seconds.

## Tiffany buys apples for her 9 siblings. They decide to split the number of apples equally. If A = number of apples Tiffany bought, how many apples do each of her siblings get?

• Let A = total number of apples.
• There are 9 siblings, so each sibling gets [A/9] apples.

## Eric bought granola bars for his 4 coworkers and gives each coworker an equal amount of granola bars. If g = number of granola bars Eric got, how many granola bars did each coworker receive?

• Let g = number of granola bars.
• There are 4 coworkers, so each coworker gets [g/4] granola bars.

## Write an expression for the number of m men minus 11 women.

### m − 11

*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.