![Find the Sum](https://data.thuvientienganh.com/images/244/find-the-sum.jpg)
Thư Viện Tiếng Anh
Thư viện tài liệu tiếng Anh miễn phí
Subject: Addition Strategies
![Find the Sum](https://data.thuvientienganh.com/images/244/find-the-sum.jpg)
![Find the Math Path](https://data.thuvientienganh.com/images/244/find-the-path.jpg)
Find the Math Path
![Fact Family Houses](https://data.thuvientienganh.com/images/244/fact-family-houses-third.jpg)
Fact Family Houses
![Math Fact: Relationship Between Addition & Subtraction](https://data.thuvientienganh.com/images/244/fact-families-third.jpg)
Math Fact: Relationship Between Addition & Subtraction
![Snail Fact Families](https://data.thuvientienganh.com/images/244/snail-fact-families-second.jpg)
Snail Fact Families
![Addition Puzzle: 20s](https://data.thuvientienganh.com/images/244/exploring-sums-puzzle-20s.jpg)
Addition Puzzle: 20s
![Odd or Even? Practicing Addition I](https://data.thuvientienganh.com/images/244/odd-even-addition-1.jpg)
Odd or Even? Practicing Addition I
![Holiday Math: Groundhog Day Addition](https://data.thuvientienganh.com/images/244/holiday-math-groundhog-day-addition.jpg)
Holiday Math: Groundhog Day Addition
![Holiday Math: Halloween Addition](https://data.thuvientienganh.com/images/244/holiday-math-halloween-addition.jpg)
Holiday Math: Halloween Addition
![Holiday Math: St. Patrick’s Day Addition](https://data.thuvientienganh.com/images/244/holiday-math-st-patrick-day.jpg)
Holiday Math: St. Patrick’s Day Addition
![Three Pigs Addition: Adding Three Numbers](https://data.thuvientienganh.com/images/244/pigs-adding-three-numbers.jpg)
Three Pigs Addition: Adding Three Numbers
![Adding Three Numbers](https://data.thuvientienganh.com/images/244/solve-number-addition.jpg)
Adding Three Numbers
![Add Three Numbers Word Problems](https://data.thuvientienganh.com/images/244/practice-adding-numbers.jpg)
Add Three Numbers Word Problems
![Count and Add Blocks](https://data.thuvientienganh.com/images/244/count-add-blocks.jpg)
Count and Add Blocks
![Word Problem Round-Up: Addition #3](https://data.thuvientienganh.com/images/244/word-problem-round-up-addition.jpg)
Word Problem Round-Up: Addition #3
![Subtraction Fact Families](https://data.thuvientienganh.com/images/244/subtraction-checkpoint.jpg)
Subtraction Fact Families
![Skip Counting Practice](https://data.thuvientienganh.com/images/244/skip-counting-practice.jpg)
Skip Counting Practice
![Practice Test: Word Problems](https://data.thuvientienganh.com/images/244/practice-test-word-problems1.jpg)