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Practice with the Language of Algebra

Site: Saylor Academy
Course: GKT101: General Knowledge for Teachers – Math
Book: Practice with the Language of Algebra
Printed by: Guest user
Date: Tuesday, May 13, 2025, 11:15 PM

Description

Complete these exercises and check your answers.

Table of contents

Review Exercises

In the following exercises, list all the multiples less than 50 for each of the following.

  1. \(3\)
  2. \(8\)

Use Common Divisibility Tests

In the following exercises, using the divisibility tests, determine whether each number is divisible by 2, by 3, by 5, by 6, and by 10.

  1. \(96\)
  2. \(420\)

Find All the Factors of a Number

In the following exercises, find all the factors of each number.

  1. \(30\)
  2. \(180\)

Identify Prime and Composite Numbers

In the following exercises, identify each number as prime or composite.

  1. \(19\)
  2. \(121\)

Source: Rice University, https://openstax.org/books/prealgebra-2e/pages/2-review-exercises
Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 License.

Answers

  1. \(3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48\)

  2. \(8, 16, 24, 32, 40, 48\)

  3. \(2, 3, 6\)

  4. \(2, 3, 5, 6, 10\)

  5. \(1, 2, 3, 5, 6, 10, 15, 30\)

  6. \(1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180\)

  7. prime

  8. composite