Search results 23 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 Inequality by Dr. Osama M. Khaled — published Aug 22, 2022 — last modified May 25, 2025 10:21 PM — filed under: Year 4, Year 5 Compare whole numbers using inequality symbols Located in Mathematics / … / Whole Numbers / An Introduction to the Whole Numbers 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 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 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 Evaluate expressions involving addition and subtraction. by Dr. Osama M. Khaled — published Nov 04, 2025 — last modified Nov 04, 2025 08:22 PM — filed under: Year 4 To evaluate (find the value of) expressions written in horizontal form that involve addition and subtraction, we perform the operations as they occur from left ... Located in Mathematics / … / Whole Numbers / Subtracting Whole Numbers Multiply whole numbers by one-digit numbers by Dr. Osama M. Khaled — published May 09, 2026 — last modified May 10, 2026 09:21 PM — filed under: Year 4 Multiplication is repeated addition,and it is written using a multiplication symbol × Located in Mathematics / … / Whole Numbers / Multiplying Whole Numbers Multiply whole numbers that end with zeros by Dr. Osama M. Khaled — published May 09, 2026 — last modified May 10, 2026 09:22 PM — filed under: Year 4, Year 5 An interesting pattern develops when a whole number is multiplied by 10,100,1,000 and so on. Located in Mathematics / … / Whole Numbers / Multiplying Whole Numbers Solve application problems by multiplying whole numbers by Dr. Osama M. Khaled — published May 10, 2026 — last modified May 10, 2026 09:29 PM — filed under: Year 4, Year 6, Year 5 Application problems that involve repeated addition are often more easily solved using multiplication. Located in Mathematics / … / Whole Numbers / Multiplying Whole Numbers Find the area of a rectangle by Dr. Osama M. Khaled — published May 10, 2026 — last modified May 10, 2026 09:30 PM — filed under: Year 4 One important application of multiplication is finding the area of a rectangle Located in Mathematics / … / Whole Numbers / Multiplying Whole Numbers 1 2 3 Next 10 items > Subscribe to an always-updated RSS feed.
