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Use the number line for adding and subtracting integers:

Try it by clicking on the problems below.

 

Watch out! The negative of a negative is the opposite positive number. That is, for real numbers, - (- a ) = + a
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 ·  Place value

 ·  Decimal numbers

 ·  Estimating and
    rounding

 ·  Adding / subtracting
    decimals

 ·  Multiplying decimals

 ·  Dividing decimals

 ·  Percent

 ·  Exponents

 ·  Square roots

 ·  Signed integers

 ·  Adding and
    subtracting integers

 ·  Multiplying and
    dividing integers

 ·  Properties of integers


First Glance In Depth Examples Workout
First Glance   In Depth   Examples   Workout

Adding and Subtracting Integers