### Math TEKS/Tutorials

*CLICK TO VIEW MATH TEXAS ESSENTIAL KNOWLEDGE AND SKILLS*

- Commutative Property of Addition
- Count On to Add (count on to add Scrambled Egg City)
- Doubles to Add
- Doubles Plus One to Add
- Doubles and Near Doubles Strategies to Add
- Make a Ten to Add: Part One Part Two
- Count On Using Tens and Ones
- Regroup Ones as Tens
- Add One Digit Numbers and Two Digit Numbers
- Add Two Digit Numbers (Adding Tens and Ones Game)
- Adding Three Numbers Part Two
- Add Three Two Digit Numbers
- Add in Any Order
- Estimate Sums
- Addition Vocabulary Review Interactive
- Count On to Add Coins
- Add Coins to Make a Dollar
- Adding Money
- Add Hundreds
- Regroup Ones Using Models
- Regroup the Tens to Add Three Digit Numbers
- Estimate Sums of Three Digit Numbers
- Add Greater Numbers
- Personal Tutor, Properties of Addition
- Self Check, Properties of Addition
- Estimate or Exact Answer to Solve
- Personal Tutor, Estimate Sums
- Personal Tutor, Adding Two Digit Numbers
- Personal Tutor, Adding Money
- Adding Larger Numbers Activity
- Personal Tutor, Adding Greater Numbers/Money
- Personal Tutor, Adding Money2
- Personal Tutor, Addition Word Problems
- Relate Addition and Subtraction
- Addition and Subtraction Fact Families
- Count Back to Subtract
- Subtract All or Subtract Zero
- Use Doubles to Subtract
- Missing Addends use Subtraction Facts
- Count Back by Tens and Ones
- Regroup Tens as Ones
- Subtract One Digit Numbers from Two Digit Numbers
- Subtract Two Digit Numbers
- Check Subtraction with Addition
- Estimate Differences
- Comparing Money Amounts
- Subtracting Money
- Subtract Hundreds in Three Digit Numbers
- Regroup Tens to Subtract Three Digit Numbers Part Two
- Regroup Hundreds to Subtract Three Digit Numbers: Part One Part Two
- Estimate Differences to Subtract Three Digit Numbers
- Draw a Picture Problem Solving
- Guess and Check Problem Solving
- Act It Out Problem Solving
- Math Tool Chest