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CodeSignal

Understand and Use Math Models in Real Life

via CodeSignal

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Overview

You’ll use expressions, equations, and inequalities to understand real situations. By plugging in values, estimating results, and interpreting constraints, you’ll learn how to check whether a model makes sense and explain what it means in everyday terms.

Syllabus

  • Unit 1: Plug In Values and Interpret Results
    • Substitute and Filling in Steps
    • Plug In and Compute
    • Compute Discounts and Remaining Balances
    • Match Results And Meanings
    • Interpret a Computed Total
  • Unit 2: Estimate to Check Your Thinking
    • Finish The Estimate Statements
    • Take a Quick Estimate
    • Is This Reasonable?
    • Fill In the Sanity Checks
    • Check the Grocery Receipt with an Estimate
    • Estimate to Catch Savings Errors
  • Unit 3: Understand Limits and Ranges
    • Locate the Cutoff Point
    • Read Allowed Ranges
    • Find the Boundary from Test Values
    • Describe The Acceptable Range
    • Translate Eligibility Ranges into Everyday Words
  • Unit 4: Explain Models Clearly
    • Decode Each Model Piece
    • Complete the Summaries
    • Break Down the Expression
    • Put the Equation Into Words
    • Explain The Inequality
    • Help a Friend Understand an Inequality

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