Pre-Algebra Chapter 4. Factors, Fractions and Exponents. 4.1 Divisibility and Factors. Make a concept map with terms from chapter 4. Factors Greatest Common Factor Divisible Prime Number Composite Number Prime Factorization. 4.1 Divisibility and Factors. Divisibility rule for 7.
Factors, Fractions and Exponents
Make a concept map with terms from chapter 4
Greatest Common Factor
Take the last digit in a number.
Double and subtract the last digit in your number from the rest of the digits.
Repeat the process for larger numbers.
1. Add the odd-numbered digits together (the first, third, fifth, etc). 2. Add the even-numbered digits together (the second, fourth, sixth, etc). 3. Subtract the smaller number from the bigger number. If the number you get is divisible by 11, then so is the original number. (0 is divisible by 11).
Exponent is a number that shows how many times a base is used as a factor.
Base is the repeated factor of a number written in exponential form.
Power is any expression in the form an. Power also refers to the exponent.
Write each expression with exponents
Simplify or Evaluate the expressions
Use factor trees to find the prime factorization of the given numbers.
a. 210 b. 588 c. 1260
Find the GCF of the following 210x3y, 588x2y, 1260x4y4.
A Rational Number is any number that can be written in the form and b ≠ 0 (Can be a fraction)
a. P=88.2 cm b. P = 52in
Formula: a x 10nwhere 1≤a˂10 and n is a positive or negative integer.
Standard Notation of a number is found by simplifying the product of the two factor from the number in scientific notation