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I4C

2nd Grade - Estimation

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Apply appropriate methods to estimate and mentally calculate sums or differences with ones, tens, and hundreds. 0206.2.9

Links verified on 12/30/2014

  1. Estimate numbers on a number line - after students make their estimate you reveal the answer and display a new problem.
  2. Home Run Derby Math - you don't have time to add, just estimate the correct answer [addition, subtraction, or multiplication] This site is interactive and allows students to play a game or input or collect data

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.
 

  

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