# Mathematics

**Addition**

**Finding Numbers that Add up to 10**

**Adding 1**

**Addition**

**Adding 2**

**Adding 3**

**Adding 4**

**Adding 5**

**Adding 6**

**Adding 7**

**Adding 8**

**Adding 0**

**Value of a Digit**

**Adding Whole Numbers**

**Inverse Relationships**

**Adding With One and Two Digits**

**Addition Vocabulary**

**Sums and Differences to 10**

**Adding Whole Numbers from 0-20**

**Number and Operations in Base Ten**

**Addition**

**Adding Single Digit Numbers**

**Words Associated with Addition**

**Adding Doubles**

**Adding 1's and 2's**

**Adding 3's and 4's**

**Adding 5's and 6's**

**Adding 7's and 8's**

**Adding 9's and 0's**Show All

**Subtraction**

**Subtraction Operations and Algebraic Functions**

**Subtract multiples of 10**

**Subtracting 1**

**Subtracting 2**

**Subtracting 3**

**Subtracting 4**

**Subtracting 5**

**Subtracting 6**

**Subtracting 7**

**Subtracting 8**

**subtracting 9**

**Subtracting 0**

**Value of a Digit**

**Inverse Relationships**

**Subtracting Whole Numbers**

**Sums and Differences to 10**

**Number and Operations in Base Ten**Show All

**Order Numbers**

**Counting by 2's**

**Counting forward and backward**

**Say "Even" or "Odd"**

**Missing Numbers from 50-100**

**Counting by 2**

**Numbers as Words**

**Skip Counting**

**Even or Odd Rules**

**Counting 1-20: Review**

**Counting by 2's**

**Counting by 5's**

**Counting by 10's**

**Is it Odd or Even?**

**Count Down from 20**

**Numbers as Words**

**Counting and Cardinality**

**Counting from 40 to 59**

**Counting from 60-79**

**Counting Backwards from Ten**

**Count to 20 by 2's**

**Count to 30 by 3's**

**Count to 40 by 4's**

**Count to 100 by 5's**

**Count to 90 by 6's**

**Tally Marks**

**Block counting by ten's to 100**Show All