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Mental Math Quiz: Equivalent Expressions and Numerical Expressions

Test your understanding of relationships of operations, equivalent expressions, and numerical expressions with this mental math quiz. No calculators or writing utensils allowed!

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Mental Math Quiz: Equivalent Expressions and Numerical Expressions

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  1. Take out your packet Solve using mental math (No calculators, pencils, talking or air writing) 3. You will have 2 minutes to get this done 254 + 49 DO NOW:

  2. I will be able to demonstrate my understanding of: • relationships of operations and use them to generate equivalent expressions • How to write and evaluate numerical expressions with whole number exponents and • variables; understand that a letter in an expression can represent a number • So that I can complete my QUIZ with at least 80% accuracy: • 6.EE.A1., 6.EE.A2c, 6.EE.A3, 6.EE.A4

  3. Agenda • Open Response example (20 minutes) • Pick up a “QUIZ” • Check work before passing in the QUIZ! • Pick up H.W. : “Introduction to Algebra: Vocabulary” worksheets

  4. Open Response Practice

  5. Read the first time. Ask yourself, “what is this situation about?” • Read the problem a second time. Ask yourself, “what are the quantities in the situation?” • Read the problem a third time. Ask yourself, “what mathematical questions can we ask about the situation?” This situation is about a painter and how much they charge to paint a room. It talks about the relationship between the number of hours a painter works painting and the total amount the painter charges for painting. The quantities include $25, hours 1-5 and 13 hours Is there a pattern that we can create to fill in our table? How can we establish an equation to represent the information? What would be the most efficient way to solve for how much the painter earned for 13 hours?

  6. a. If the painter charges $25 per hour, then for 1 hour he would earn $25 (1x25), for 2 hours he would earn $50 (2x25). The pattern continues to add $25 to the previous number of hours, or to take the number of hours (h) and multiply by 25 to get the total charge. Painter’s Charges b. c=25h the c represents the total cost, which is found by taking the 25 (the money he earns per hour) and multiplying it by h, the number of hours of painting. c. If the painter took 13 hours to paint a room, he would charge $325. I found this by replacing the h with 13 and multiplying by 25. As a result I got 325. To double check my answer, I could also look at my table and add 125+125+75, this is for 5 hours + 5 hours + 3 hours that represents the total 13 hours.

  7. How do you feel? topic.

  8. Quiz Please take your time to carefully complete your quiz. Please make sure to answer EVERY questions. Make sure that you have your labels where needed, and that you read your questions carefully.

  9. How do you feel? topic.

  10. Homework: “Introduction to Algebra: Vocabulary” Worksheets

  11. Accommodations • Read or reread presentation or activity directions, as needed or after prompting • Use examples to model and act as a guide for emerging learners

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