New math: Compare numbers and add_summ

4.11.2016 690 views ;)

Today I was added 2 item into Math questions point of my site:

  1. Addition and Subtraction of numbers from 1 to 100000
  2. Compare numbers to 1000.

lets your kids try to calc it in paper.
My son😀😀😀 was give me this idea. 🌞👨👪
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