Bell Work 8/19/14Evaluate each expression for the replacement set 3, 9, 13 .

1. 2x 3x

2

9x

2

13x

2

Evaluate each expression for the replacement set 7, 12, 16 .2. 4x

7x

4

12x

4

16x

4

Yesterday’s Homework

1. Any questions?2. Please pass your homework to the front.

• Make sure the correct heading is on your paper.• Is your NAME on your paper?

• Make sure the homework is 100% complete.• Incomplete work will NOT be accepted.

What Do Notes Look Like?• Heading

• Date

• Section # and Title

• Notes• You do not have to copy the text in blue!

•Homework

Variables and Expressions (translate)

04/21/23

Heading

TSWBAT: write a word phrase as a variable expression.

Students simplify expressions before solving linear equations and inequalities in one variable, such as 3(2x - 5) + 4(x - 2) = 12.

1.1B

Notes• Word Meanings

Addition (+) Subtraction (-) Multiplication (x) Division (÷)sumplus

increased bymore than

differenceminus

decreased byless than

producttimes

multiplied by

quotientdivided by

x plus 7

Ex.

x 77x

9 times p

Ex.

9 p9 p

Write the phrase as a variable expression.

NotesWrite the phrase as a variable expression.

Now you try.

The difference between r and 3.

Ex.

r 33r

The product of 7 and m.

Ex.

7 m

7m

NotesGive two ways to write each algebraic expression in words.

Now you try.

What words can we use? Ex.

2x difference

minusdecreasedless than

The difference of x and 2x minus 2x decreased by 22 less than x

What words can we use? Ex.

7 ysumplus

increasedmore than

The sum of 7 and y7 plus y7 increased by yy more than 7

NotesGive two ways to write each algebraic expression in words.

Now you try.

What words can we use? Ex.

8r

producttimes

multiplied

The product of 8 and r8 times r8 multiplied by r

What words can we use?

Ex.

2

x

quotientdivided by

The quotient of x and 2x divided by 2

Summary

In real life people communicate with words not math operations. Translation words include: sum means _________, __________ means subtraction, product means _____________, and ________ means division.

addition differencemultiplication quotient

Today’s Homework

1. Pencil ONLY.2. Must attempt EVERY problem.3. Always check your answers.

Rules for Homework

HomeworkWrite the phrase as a variable expression or sentence.

1. 8 times x 2. t decreased by 3

3. a divide by 2 4. 5 more than x

5. r less than 6 6. The product of 5 and n

Give two ways to write each algebraic expression in words.

7. 2m 8. 9c

9. 4x 10. 5p

Complete the Ticket Out the Door without talking!!!!!

Talking = time after the bell!

Ticket Out the Door

Put your NAME on the paper.

When finished, turn your paper face DOWN.

10x

Give two ways to write each algebraic expression in words.