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  • ty so much.......woo hoo never heard of it this way

    tammijo765765 5 days ago

  • Checking an addition doing a subtraction does not make sense

    just like dividing to check a multiplication

    What if you make mistakes during the check?

    Will you do the check of the check?

    You risk to go on for the eternity...

    theprof1958 3 weeks ago

  • what program do you use?

    YummyBear37 3 months ago

  • awesome!

    skylerchan52 3 months ago

  • i love love your videos so much thank you mr so much my dad say if i learn more than i know more this will!!!!!!!!!!HELP ME IN SCHOOL MATH ROCKS sometimes

    skylerchan52 3 months ago

  • thx thx so much for teaching me this lesson

    skylerchan52 3 months ago

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