• Chapter 5 - Add and Subtract Decimals
     
    In Chapter 5, we will explore addition and subtraction problems that contain decimals.  We will also learn how to estimate sums and differences.
     
    Vocabulary for Chapter 5:
     
    Associative Property of Addition:  the way in which numbers are grouped does not change the sum
     
    Commutative Property of Addition:  the order in which numbers are added does not change the sum
     
    decimal:  a number that has digits in the tenths place, hundredths place, and beyond
     
    difference:  the result of a subtraction problem
     
    estimate:  to make an approximate calculation by using numbers that are easier to solve mentally
     
    Identity Property of Addition:  the sum of any number and 0 equals the number 
     
    sum:  the result of an addition problem
     
     
    Glossary
    Click here to link to a full listing of Math vocabulary terms.