
Guide to Fraction Arithmetic
... prime number possible. For harder numbers, or if you find it difficult to find factors, divide by 2 as many times as possible, then try 3, then 5 etc… ...
... prime number possible. For harder numbers, or if you find it difficult to find factors, divide by 2 as many times as possible, then try 3, then 5 etc… ...
CSCI 2610 - Discrete Mathematics
... factor (divisor) that is less than or equal to √n Proof: if n is composite, we know it has a factor a with 1 < a < n. IOW n = ab for some b > 1. So, either a ≤ √n or b ≤ √n (note, if a > √n and b > √n then ab > n, nope). OK, both a and b are divisors of n, and n has a positive divisor not exceeding ...
... factor (divisor) that is less than or equal to √n Proof: if n is composite, we know it has a factor a with 1 < a < n. IOW n = ab for some b > 1. So, either a ≤ √n or b ≤ √n (note, if a > √n and b > √n then ab > n, nope). OK, both a and b are divisors of n, and n has a positive divisor not exceeding ...
Pepperell Middle School
... • show their steps in their work and explain their thinking using the correct terminology for the properties and operations. ...
... • show their steps in their work and explain their thinking using the correct terminology for the properties and operations. ...
SOLUTIONS TO HOMEWORK 3 1(a).
... 1(d). The rule you found in (a) for remainders mod 7 is more complicated than the rule in (c) for remainders mod 37. What’s the next “surprisingly simple” rule like the one for 37? Ans: The rule for 37 is simple because 37 divides 999, and thus 103 ≡ 1 (mod 37). So, we need to find a prime divisor o ...
... 1(d). The rule you found in (a) for remainders mod 7 is more complicated than the rule in (c) for remainders mod 37. What’s the next “surprisingly simple” rule like the one for 37? Ans: The rule for 37 is simple because 37 divides 999, and thus 103 ≡ 1 (mod 37). So, we need to find a prime divisor o ...
Table of Contents
... or very small quantities, and to express how many times as much one is than the other. For example, estimate the population of the United States as and the population of the world as , and determine that the world population is more than 20 times larger. (8.EE.3) Perform operations with numbers ex ...
... or very small quantities, and to express how many times as much one is than the other. For example, estimate the population of the United States as and the population of the world as , and determine that the world population is more than 20 times larger. (8.EE.3) Perform operations with numbers ex ...
Version A
... •When using the part-whole definition of fractions, two things must be stressed. –Students must understand what the ‘whole’ is –Students must understand that the fraction must have equal sized parts of the ‘whole’ •There are an infinite number of representations for any single fraction amount – we c ...
... •When using the part-whole definition of fractions, two things must be stressed. –Students must understand what the ‘whole’ is –Students must understand that the fraction must have equal sized parts of the ‘whole’ •There are an infinite number of representations for any single fraction amount – we c ...
Arithmetic

Arithmetic or arithmetics (from the Greek ἀριθμός arithmos, ""number"") is the oldest and most elementary branch of mathematics. It consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory.