Pre-Algebra
Integers and Rational Numbers flashcards
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- What does “Signed Numbers and Opposites” mean?Positive and Negative Numbers
- Two numbers whose sum is zero and whose positions mirror across zero.
- What important condition applies to signed numbers and opposites?Positive and Negative Numbers
- A larger negative magnitude represents a smaller signed value.
- What does “Absolute Value” mean?Positive and Negative Numbers
- A number’s distance from zero on the number line.
- What important condition applies to absolute value?Positive and Negative Numbers
- Absolute value is always nonnegative.
- What does “Adding Signed Numbers” mean?Operations with Integers
- Combining positive and negative changes into one signed result.
- What important condition applies to adding signed numbers?Operations with Integers
- Subtracting a negative adds its positive opposite.
- What does “Multiplying Signed Numbers” mean?Operations with Integers
- A product whose sign follows the signs of its factors.
- What important condition applies to multiplying signed numbers?Operations with Integers
- The sign rule does not make division by zero valid.
- What does “Adding Fractions” mean?Fractions Decimals and Rational Numbers
- Combining quantities expressed as equal-sized fractional parts.
- What important condition applies to adding fractions?Fractions Decimals and Rational Numbers
- Do not add denominators when adding fractions.
- What does “Dividing Fractions” mean?Fractions Decimals and Rational Numbers
- Finding a quotient by multiplying by the reciprocal of a nonzero divisor.
- What important condition applies to dividing fractions?Fractions Decimals and Rational Numbers
- Flip the divisor, not the dividend.
- What does “Multiplying Fractions” mean?Fractions Decimals and Rational Numbers
- Taking a fractional share using a product of numerators and denominators.
- What important condition applies to multiplying fractions?Fractions Decimals and Rational Numbers
- Multiplying by a number between zero and one reduces a positive quantity.
- What does “Fractions and Decimal Notation” mean?Fractions Decimals and Rational Numbers
- Two notations for the same rational quantity.
- What important condition applies to fractions and decimal notation?Fractions Decimals and Rational Numbers
- Not every rational decimal terminates; some repeat.