Search results 3797 items matching your search terms. Filter the results Item type Select All/None Collection File Folder Image Link Movie Page Question Quiz Quiz History New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically Adding a positive integer and a negative integer by Dr. Osama M. Khaled — published Dec 16, 2025 — last modified Dec 16, 2025 07:04 PM Located in Mathematics / … / Adding Integers / Add two integers that have different signs Add: 4 + (-7) by Dr. Osama M. Khaled — published Dec 16, 2025 — last modified Dec 20, 2025 09:44 AM Located in Mathematics / … / Adding Integers / Add two integers that have different signs Giza pyramids in Egypt are a true manifestation of how geometry can be used for construction by Dr. Osama M. Khaled — published May 22, 2022 — last modified Jun 09, 2025 08:46 PM — filed under: History Located in Mathematics / … / Fundamentals / History of Geometry Write the following improper fraction as a mixed number or a whole number by Dr. Osama M. Khaled — published May 18, 2024 Located in Mathematics / … / Multiplying and Dividing Mixed Numbers / Improper fractions to mixed numbers Solve application problems by adding whole numbers by Dr. Osama M. Khaled — published Jun 10, 2025 — last modified Jun 11, 2025 05:04 AM — filed under: Year 2, Year 3 Since application problems are almost always written in words, the ability to understand what you read is very important. Located in Mathematics / … / Whole Numbers / Adding Whole Numbers If a transversal is perpendicular to one of the two parallel lines, it is also perpendicular to the other line by Dr. Osama M. Khaled — published Feb 28, 2024 — last modified Feb 28, 2024 11:52 PM Located in Mathematics / … / Parallel and Perpendicular Lines / Use properties of parallel lines cut by a transversal to find unknown angle measures parallel_perp.gif by Dr. Osama M. Khaled — last modified Feb 28, 2024 11:51 PM Located in Mathematics / … / Use properties of parallel lines cut by a transversal to find unknown angle measures / If a transversal is perpendicular to one of the two parallel lines, it is also perpendicular to the other line If two lines are parallel to a third line, the are not necessarily parallel to each other by Dr. Osama M. Khaled — published Feb 28, 2024 — last modified Feb 28, 2024 11:59 PM Located in Mathematics / … / Parallel and Perpendicular Lines / Use properties of parallel lines cut by a transversal to find unknown angle measures Use front-end rounding to estimate the sum by Dr. Osama M. Khaled — published Jun 09, 2025 — last modified Jun 09, 2025 09:12 PM Located in Mathematics / … / Adding Whole Numbers / Estimate sums of whole numbers What is meant by the atomic mass of an element? by Dr. Osama M. Khaled — published Jun 18, 2024 Located in Physics / Atoms and Molecules / Self Test < Previous 10 items 1 ... 15 16 17 18 19 20 21 ... 380 Next 10 items > Subscribe to an always-updated RSS feed.
