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Order Up!

AKA The Fragmentary Fast Food Frequency

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What do you notice?�

�

What questions do you have?

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What do you notice?�

�

What questions do you have?

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Question:

What is the cost of this guy’s total order?

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Write an estimate

that is:

Too high

Too low

Best Guess

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What information do you need to answer the question?

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Some useful information...

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So, what is the �total cost of this guy’s order?

This guy’s order will cost $37.25!

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Which method of solving was�Faster?

Calculating in order

Grouping, then calculating

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Let’s try a few examples...

A + B + B + C + B + A + A + C + A=

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Let’s try a few examples...

A + B + B + C + B + A + A + C + A = 4A + 3B + 2C

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Let’s try a few examples...

A + B + B + C + B + A + A + C + A = 4A + 3B + 2C

Evaluate if A=2, B=1 and C=4

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Let’s try a few examples...

A + B + B + C + B + A + A + C + A = 4A + 3B + 2C

Evaluate if A=2, B=1 and C=4

4A + 3B + 2C

= 4(2)+3(1)+2(4)

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Let’s try a few examples...

A + B + B + C + B + A + A + C + A = 4A + 3B + 2C

Evaluate if A=2, B=1 and C=4

4A + 3B + 2C

= 4(2)+3(1)+2(4)

= 8 + 3 + 8

= 19

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Let’s try a few examples...

2D + E + E + 2F + D + 2E + F + 2D

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Let’s try a few examples...

2D + E + E + 2F + D + 2E + F + 2D = 5D + 4E + 3F

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Let’s try a few examples...

10Q + 8 + 2Q + 1 + 5Q + 3 =

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Let’s try a few examples...

10Q + 8 + 2Q + 1 + 5Q + 3 = 17Q + 12

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Let’s try a few examples...

Evaluate the following expression when W = 0.75

9 +3W + 2 + 2W ‒ 7 ‒ W

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Let’s try a few examples...

Evaluate the following expression when W = 0.75

9 +3W + 2 + 2W ‒ 7 ‒ W = 4W + 4

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Let’s try a few examples...

Evaluate the following expression when W = 0.75

9 +3W + 2 + 2W ‒ 7 ‒ W = 4W + 4

= 4(0.75)+4

= 3 + 4

=7

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Gathering Like Terms

Like terms have the same variable raised to the same exponent.

You gather like terms in the same way you do integers:�combine all the same variables together.

Consolidate to Salmon “Number Sense & Algebra” divider ...

Ex. 1) 2x + 3y + x + 2y

= 3x + 5y

Simplify the following expressions:

Ex. 2) 2a + 6 + 2 + 4a

= 6a + 8

Ex. 3) 10p - 4r - 3p + 6r

= 7p + 2r

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Check out this other crazy order!

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Ticket Out�The Door!

Please complete the following questions and submit them�to your teacher!

Simplify the expression below:

A + D + A + D + N + A

What situation could the expression you’ve simplified possibly describe?

If the costs of each item are as listed below, what is the total cost of the order?

D = $5 N = $2 A = $3