Add Subtract Multiply Divide Rational Numbers Integers

• Change Mixed numbers into improper fractions.

• Get common denominators and equivalent fractions.

• Follow Adding Rules across the top and keep the same denominator.

• All of the above.

• Line up decimals with the greater absolute value on top.

• Get common denominators.

• Keep - Change - Opposite

• Be rational.

Rational numbers include ...

• Integers

• Fractions

• Decimals

• All of the above.

The circles in the model represent positive and negative units.

Which equation is true based on the model?

• (-3) + 5 = -2

• (-3) + 5 = 2

• -3 + (-5) = -2

• 3 + (-5) = 2

When Multiplying/Dividing Mixed Numbers you MUST 1st...

• Find the square roots.

• Subtract.

• Turn them to IMPROPER FRACTIONS!

• Find common denominators.

When DIVIDING FRACTIONS ...

• Add the fractions.

• Get a common denominator.

• Keep the 1st fraction, Change to multiplication, and Flip the 2nd fraction to its reciprocal.

• Subtract the fractions.

When MULTIPLYING FRACTIONS...

• You MUST get a common denominator.

• Multiply across the top, multiply across the bottom.

• Add the fractions.

• Subtract the fractions.

When MULTIPLYING AND DIVIDING a (Negative)(Negative) =

• a POSITIVE answer.

• a NEGATIVE answer.

• a square root.

• a mess.

When ADDING a (Negative) + (Negative) =

• a POSITIVE answer.

• a NEGATIVE answer because you move further to the left on the number line.

• a million.

• a hundred and one.

A _________________ can be written as a "ratio" or fraction (Example:  Natural Numbers, Whole Numbers, Integers, etc.)

• Rational Number

• Irrational Number