8th Exponents, Rational, Irrational and Scientific Notation

Adding and Subtracting Integers Same Signs

• When signs are the same, add and keep the sign.
• Subtract the numbers and choose a sign

Adding and Subtracting Integers Different Signs

• When signs are different, take the sign of the lower number
• When signs are different, subtract and take the sign of the bigger number

Multiplying and Dividing Integers Same Signs

• Take the sign of the bigger number
• When signs are the same, the answer is positive

Multiplying and Dividing Integers Different Signs

• When signs are different, the answer is negative
• Take the sign of the smaller number

Multiplying with Exponents Rule

• When multiplying numbers with the same base, keep the base, Add the exponents
• Multiply the bases and keep the exponents

Dividing with Exponents Rule

• Divide the bases and keep the exponents
• When dividing numbers with the same base, keep the base, subtract the exponents: top minus bottom

Power to a Power Rule

• multiply the exponents
• Add the exponents

Zero Exponent Rule

• Keep the base and make the exponent 1
• Anything to the zero power = 1

Negative Exponent Rule

• Flip the exponents and turn them positive.
• Keep the exponents negative

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