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    Here's what we're learning in Chapter 1: Addition and Subtraction within 1,000
    Chapter 1 Test :10/9/15 
     
    •  Lessons:
    • 1.1    Number Patterns
    • 1.2    Round to the Nearest Ten or Hundred
    • 1.3    Estimate Sums
    • 1.4    Mental Math Strategies for Addition
    • 1.5    Use Properties to Add
    • 1.6    Use the break Apart Strategy to Add
    • 1.7    Use Place Value to Add
    • 1.8    Estimate Differences
    • 1.9    Mental Math Strategies for Subtraction
    • 1.10 Use Place Vale to Subtract
    • 1.11 Combine Place Values to Subtract
    • 1.12 Problem Solving: Model Addition and Subtraction


    Vocabulary:   *Words will not be tested. However, they will be seen and applied within the test.*

    Associative Property of Addition: the property that states when the grouping of addends is changed, the sum is the same

    Commutative Property of Addition: the property that states that you can add two or more numbers in any order and get the same number.

    Compatible Numbers: numbers that are easy to compute mentally

    Estimate: a number close to an exact amount

    Identity Property of Addition: the property that states that the sum of any number and zero is that number

    Pattern: a repeating or growing sequence that follows a rule

    Round: To replace a number with another number that tells about how many or about how much