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  1. Add two integers that have different signs
    by Dr. Osama M. Khaled — published Dec 16, 2025 — last modified Dec 21, 2025 10:46 AM — filed under: Year 7
    To add a positive integer and a negative integer, subtract the smaller absolute value from the larger
    Located in Mathematics / … / Integers / Adding Integers
  2. Add two integers that have the same sign
    by Dr. Osama M. Khaled — published Dec 15, 2025 — last modified Dec 15, 2025 10:48 AM — filed under: Year 7
    Adding two positive integers result in a positive answer. Adding two negative numbers results into a negative answer.
    Located in Mathematics / … / Integers / Adding Integers
  3. Add:
    by Dr. Osama M. Khaled — published May 26, 2025 — last modified Jun 19, 2025 09:00 PM Located in Mathematics / … / Adding Whole Numbers / Addition Basics
  4. 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
  5. Add: 6 + (-9)
    by Dr. Osama M. Khaled — published Dec 20, 2025 Located in Mathematics / … / Adding Integers / Add two integers that have different signs
  6. Add: 9,835 + 692 + 7,275
    by Dr. Osama M. Khaled — published May 27, 2025 — last modified May 27, 2025 10:14 PM Located in Mathematics / … / Adding Whole Numbers / Addition Basics
  7. Add: 421 + 123 + 245
    by Dr. Osama M. Khaled — published May 26, 2025 — last modified May 28, 2025 07:01 AM Located in Mathematics / … / Adding Whole Numbers / Addition Basics
  8. Adding a positive integer and a negative integer
    by Dr. Osama M. Khaled — published Dec 16, 2025 — last modified Dec 16, 2025 06:56 PM Located in Mathematics / … / Adding Integers / Add two integers that have different signs
  9. 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
  10. Adding and Subtracting Fractions
    by Dr. Osama M. Khaled — published Apr 26, 2024 — last modified May 28, 2024 08:57 PM
    In mathematics and everyday life, we can only add (or subtract) objects that are similar. For example, we can add dollars to dollars, but we cannot add dollars ...
    Located in Mathematics / Basic Arithmetic / Fractions and Mixed Numbers
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