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Chapter 4 Exponents
| Question | Answer |
|---|---|
| Rules for divisibility | 2. even number 0,2,4,6,8 3. sum of the digits is divisible by 3 4. last 2 digits are divisible by 4 5. ends in 0 or 5 6. if divisible by 2 and 3 (has to be both) 8. last 3 digits divisible by 8 9. the sum of the digits divide by 9 10. ends in zero |
| Factors | numbers that are evenly divisible by a number |
| Order of operations | PEMDAS parenthesis, exponents, multiply, divide, add, subtract |
| Exponent | method of showing repeated mult. = how many times to multiply a number by itself |
| Base | the big main number |
| Power | smaller number at top |
| (-3)^2 Means | exponent |
| -3^2 means | |
| Prime Numbers | a number with 2 factors |
| Composite Numbers | a number with 3 or more factors |
| GCF | the greatest number that is divisible into a set of numbers |
| Variable GCF (example: x^2 y^2 xy^2) | |
| Prime factorization (example: 120) | |
| Finding prime factorization using GCF | |
| Simplifying Variable expressions | subtracting the exponents |
| Rational NUmbers - Give examples of rational numbers | |
| Negative Rational numbers- how do you write | |
| Multiplying exponent rule example 4x^3y^5x3x^2yz^2 | multiplying powers with the same base |
| Power of power rule | power of a power |
| Zero exponent rule | |
| zero exponent rule | |
| negative exponent rule | |
| write without negative exponents | |
| rewrite without a fraction bar | |
| rewrite without zero or negative exponents and simplify | |
| (example: x^2 y^2 xy^2) | |
| (example: 120) | |
| example 4x^3y^5x3x^2yz^2 | |
| Example 78 and 124 | |
| example (12x^2y^5)/(8x^4y^2 | |
| Courtney Bethell | Period 4 |