Search results 13 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 Additions and subtractions by Mohamed Osama — published Sep 18, 2020 — last modified Jul 12, 2024 09:16 PM — filed under: Year 2, Year 3 Located in Mathematics / Basic Arithmetic / Whole Numbers Applying Division by Dr. Osama M. Khaled — published May 29, 2022 — last modified Jul 12, 2024 09:19 PM — filed under: Year 3, Year 4 Wondering how division can be used in real life? Take the quiz to know the answer. Division word problems Located in Mathematics / Basic Arithmetic / Whole Numbers Check subtraction using addition by Dr. Osama M. Khaled — published Oct 31, 2025 — last modified Oct 31, 2025 10:48 AM — filed under: Year 3 To describe the special relationship between addition and subtraction, we say that they are inverse operations Located in Mathematics / … / Whole Numbers / Subtracting Whole Numbers Estimate differences of whole numbers by Dr. Osama M. Khaled — published Nov 03, 2025 — last modified Nov 04, 2025 08:26 PM — filed under: Year 3 Estimation is used to find an approximate answer to a problem Located in Mathematics / … / Whole Numbers / Subtracting Whole Numbers Estimate sums of whole numbers by Dr. Osama M. Khaled — published Jun 03, 2025 — last modified Jun 09, 2025 10:17 PM — filed under: Year 3, Year 4, Year 5 Estimation is used to find an approximate answer to a problem Located in Mathematics / … / Whole Numbers / Adding Whole Numbers Natural Numbers by Dr. Osama M. Khaled — published Oct 06, 2021 — last modified Dec 12, 2025 10:23 AM — filed under: Year 3, Year 4 What do you know about natural number Located in Mathematics / Basic Arithmetic / Whole Numbers Numerator and denominator of a fraction by Dr. Osama M. Khaled — published Oct 08, 2022 — last modified Jul 12, 2024 09:33 PM — filed under: Year 3, Year 4 Some vocabulary and definitions in fractions Located in Mathematics / … / Fractions and Mixed Numbers / Basics Reading bar graphs by Dr. Osama M. Khaled — published May 19, 2025 — last modified May 19, 2025 05:28 AM — filed under: Year 2, Year 3, Year 4, Year 5, Year 6 You need to get familiar with the bar graphs and understand some concepts in order to interpret it the right way Located in Mathematics / Statistics / Reading Graphs and Tables Round whole numbers by Dr. Osama M. Khaled — published Sep 13, 2023 — last modified May 25, 2025 10:21 PM — filed under: Year 3, Year 4 When we don’t need exact results, we often round numbers Located in Mathematics / … / Whole Numbers / An Introduction to the Whole 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 1 2 Next 3 items > Subscribe to an always-updated RSS feed.