Addition and subtraction with number lines | 2nd grade | Khan Academy
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Addition and subtraction with number lines | 2nd grade | Khan Academy
Sal figures out which number line matches up with a 2-digit addition or subtraction problem. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-add-100/v/adding-two-digit-numbers-without-regrouping?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www ...
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