Search results 17 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 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 Read pictographs by Dr. Osama M. Khaled — published Dec 10, 2025 — last modified Dec 11, 2025 07:03 PM — filed under: Year 4 A pictograph is like a bar graph, but the bars are made from pictures or symbols. A key tells the meaning (or value) of each symbol. Located in Mathematics / Statistics / Reading Graphs and Tables 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 Speed of Animals by Dr. Osama M. Khaled — published May 19, 2025 — last modified May 19, 2025 06:36 AM — filed under: Year 4, Year 5, Year 6, Year 7 You can better understand the bar graphs through a real-life example. Located in Mathematics / Statistics / Reading Graphs and Tables Subtract whole numbers with borrowing by Dr. Osama M. Khaled — published Oct 30, 2025 — last modified Oct 31, 2025 07:06 AM — filed under: Year 3, Year 4 If the subtraction of the digits in any place value column requires that we subtract a larger digit from a smaller digit, we must borrow or regroup Located in Mathematics / … / Whole Numbers / Subtracting Whole Numbers < Previous 10 items 1 2 Subscribe to an always-updated RSS feed.