Heres an activity where students use real dominoes to figure out which numbers are missing from two-digit addition and subtraction problems (no regrouping). Great for my kids who already understand place value and adding two digit numbers
Math Coach's Corner: Open Number Line Addition. What exactly is an open number line? Well, it's a number line with no numbers or tick marks. Open number lines are great models for working with subtraction with regrouping.
FREE ~ place value practice for deeper understanding of 2 digit addition ~ roll it ~ write it ~ build it ~ draw it ~ write it in expanded notation ~ first grade math ~ common core ~ CooL ScHooL Stuff!,Education,First Gra
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