Monster Equations -Adding and Subtracting 2-Digit Numbers has 100 task cards! There are 5 sets with 20 task cards for each set.
Set 1: Adding 2-Digit numbers with regard to the equal sign
Set 2: Subtracting 2-Digit numbers with regard to the equal sign
Set 3: Adding and Subtracting 2-Digit numbers with a missing number
Set 4: Adding/Subtracting using equal equations
Set 5: Adding three 2-Digit numbers