Addition Facts (within 20), Subtraction Facts (within 20) and Number Sense (1-20) Puzzles
Perfect for math centers or stations
Addition and subtraction puzzles are self checking, as the all expressions for each sum/difference have the same symbol.
Number sense puzzles include tally marks, base ten blocks, number word and money.
Have a blessed day!
Common Core State Standards:
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.
Understand that the two digits of a two-digit number represent amounts of tens and ones.