Do the addition or subtraction. You can use the calculator, but be careful with the signs!
 
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In order to become skilled in mathematics you need to practice!

Try a workout of 10 problems. If you get at least 8 correct on your first attempt, then you're ready to move on. If not, review "In Depth" and try again.

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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