Time Allotment One 50-minute class period Learning Objectives On completion of this lesson students will be able to: •Demonstrate knowledge and understanding of the rules of **divisibility** for the numbers 2, 3, 5, 9, and 10 •Apply **divisibility** rules (This lesson addresses Va. SOLs Math 6.3, 6 ...

**Divisibility** Rules Worksheet www.edonyourown. com **Divisibility** Rules By Janine Bouyssounouse The **divisibility** rules make math easier . Did you ever wonder how people could tell if something was **divisible** by a number just by looking at it?

Here is a handy chart that lists all the **divisibility** rules you have learned. Any number less than 121 that does not pass any of the tests below is prime!

Number Theory Notes (v. 4.23{October 31,2002) 1 Number Theory is the branch of mathematics that deals with integers and their properties, especially properties relating to arithmetic operations like addition, subtraction, multiplication and division.

**Divisibility** Patterns If a number is a factor of a given number, you can also say the given number is by the factor. For example, 144 is **divisible** by 9 since 144 9 16, a whole number.

**Divisibility** Rule For 7 page 1 273 7 39 - 21 - 63 63 0 **D IVISIBILITY** R ULE FOR 7 (AND 13, AND...) by Robert H. Prior, March 4, 2005 **Divisibility** Rule for 7: A whole number, N, is a multiple of 7 if the following procedure leads to another multiple of 7 * : (1) Subtract the ones digit from N, (2 ...

**Divisibility** Rules Chart LOOK AT THE DIGIT IN THE ONES PLACE! 2 Last digit is even 5 Last digit is a 5 or 0 10 Last digit is 0 CHECK THE DIGIT SUM! 3 Sum of digits is **divisible** by 3 6 Number is **divisible** by 3 AND 2 9 Sum of digits is **divisible** by 9 LOOK AT THE LAST DIGITS! 4 Last 2 digits form a ...

1 **Divisibility** In these problems, all numbers mentioned are integers . Integer numbers:..., -3, -2, -1,0,1,2,3, ... If km = n , where k , m , and n are all integer numbers, then n isa multiple of both m and k , and numbers m and k are factors of n . 1 .

Cynthia A. Crumb University of South Alabama **Divisibility** Rules Display crumb@jaguar1.usouthal.edu Elementary Education Content Standard: Number and Operations Process Standard: Communication, Representation, Connections Overhead **Divisibility** Rules Display Terminology - Mathematics - Patterns ...

Name _____ **Divisibility** Worksheet Number digit sum 2 3 4 5 6 9 10 Answer s 1248 15 9 9 9 9 2, 3, 4, 6 2 - the last digit will be 0, 2, 4, 6, 8 3 - the sum of the digits is a multiple of 3 (3654…