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Numbers to 20

Lesson 1 - Numbers 11 and 12  
Lesson 2 - Numbers 13, 14, and 15  
Lesson 3 - Numbers 16 and 17  
Lesson 4 - Problem Solving Strategy: Make a Graph  
Lesson 5 - Numbers 18, 19, and 20  
Lesson 6 - Compare Numbers to 20  
Lesson 7 - Order Numbers to 20 (use a number line)  
Study Guide and Review  
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