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pls help solving 4th math

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1. Explain why you would use front end estimation. Gie an example of one time you might use it.

2. Explain in words how to add 234+467. Make sure to explain regrouping, if necessary.

Thanks for your help!

  • pls help solving 4th math -

    2)
    234 +
    467
    ** 4+7 = 11
    ** 60+30= 90
    **200+300=600
    Answer =600 + 90 +11= 701

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