Correlates with 1.OA.4. of Common Core Math Standards: Understand subtraction as an unknown-addend problem. In this game, students will determine the answer to a subtraction problem by using the count up strategy.
These activities correlate with 1.OA.7. of the first grade Common Core Standards. In order to determine if addition and subtraction equations are true or false, students will need to understand the meaning of "true" and "false" prior to teaching
Correlates with 1.NBT.3. of 1st Grade Common Core Math Standards: Compare two two-digit numbers based on the meanings of the tens and ones digits, recording the results of comparisons with the symbols = and Ã¢ï¿½Â .
In this introductory game,