Search results 14 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 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 Natural Numbers by Dr. Osama M. Khaled — published Oct 06, 2021 — last modified May 13, 2026 08:19 AM — filed under: Year 3, Year 4 What do you know about natural number Located in Mathematics / … / Whole Numbers / An Introduction to the Whole Numbers Use properties of addition to add whole numbers by Dr. Osama M. Khaled — published May 28, 2025 — last modified Jun 02, 2025 07:11 AM — filed under: Year 2, Year 3 Two whole numbers can be added in either order because the result is the same. This is called commutative property of addition. There are other properties ... Located in Mathematics / … / Whole Numbers / Adding 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 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 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 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 Solve application problems by subtracting whole numbers by Dr. Osama M. Khaled — published Nov 04, 2025 — last modified Nov 04, 2025 08:25 PM — filed under: Year 3 To answer questions about how much more or how many more, we use subtraction Located in Mathematics / … / Whole Numbers / Subtracting Whole Numbers Write the related multiplication statement for a division by Dr. Osama M. Khaled — published May 10, 2026 — last modified May 10, 2026 09:32 PM — filed under: Year 4, Year 3 To divide whole numbers,think of separating a quantity into equal-sized groups. Located in Mathematics / … / Whole Numbers / Dividing Whole Numbers 1 2 Next 4 items > Subscribe to an always-updated RSS feed.
