This set of no-prep math worksheets is a fun way for your students to practice addition and subtraction within 20. Perfect to use in your math centers, for early finishers, as homework, or in your sub plans! Just print and use.
 
On each page, students solve addition and subtraction problems with sums or differences up to 20. Then they color each section according to the key. If all the problems are solved and colored correctly, a fun picture will be revealed.
 
Includes 15 color by number worksheets:
Addition within 10 review (1 page)
Subtraction within 10 review (1 page)
Addition within 20
Subtraction within 20
Mixed addition and subtraction within 20
 
This resource supports grade 1 math standards and provides plenty of computation practice.
 
Answer keys are included.