Grade 6 1.6 Writing Expressions from Word Problems

What does the variable represent in this expression: `12h`

• The number of students

• The number of hours

• The number of dollars

• The number of rooms

Write an expression for:

"Sarah has 3 fewer pens than twice what John has."

Use x as the variable.

Mathematical Equivalence

ON

Which expression means: "A plant is 8 inches shorter than 5 times the height of another plant"?

• 5x − 8

• 8 − 5x

• 8x − 5

• 5 − 8x

Match the word problem to its expression: * A person earns $12 per hour → `12h` * A car travels 60 miles per hour for h hours → `60h` * A concert ticket costs $30, students get $5 discount → `30x − 5` * A painter charges $50 per room and $20 setup → `50r + 20`

• 12h

• A concert ticket costs $30, students get $5 discount

• 50r + 2

• A painter charges $50 per room and $20 setup

• 30x − 5

• A car travels 60 miles per hour for h hours

• 60h

• A person earns $12 per hour

Which operation comes first in the phrase: "3 more than twice the number of pencils"?

• Add

• Subtract

• Multiply

• Divide

Write an expression for: "A school has 3 fewer classrooms than twice the number of grade levels."

A student writes: `3 - 2x` for "Sarah has 3 fewer pens than twice what John has." Is the student correct?

• Yes

• No

A concert ticket costs $30. All students get a $5 discount. Let x be the number of students. Write the expression:

Liam earns $12 per day. Let d be the number of days. Write the expression:

Mathematical Equivalence

ON

Which is a correct expression for: “7 fewer than 4 times the number of adults”?

• 7 - 4x

• 4x - 7

• 7x - 4

• x - 7