Elementary (K–5)
Math
Grade 1 Math: Addition & Subtraction to 20: Challenge
Free Grade 1 Addition & Subtraction to 20 practice with study guides and quizzes at easy, medium, hard, and final exam levels. Stretch thinking with multi-step problems, application questions, and deeper reasoning.
Hard Level Guide
Stretch thinking with multi-step problems, application questions, and deeper reasoning.
Addition Strategies
Count on, use doubles, and make ten to add efficiently.
Subtraction Strategies
Think addition, count back, and use related facts.
Word Problems
Join, separate, and compare situations use addition or subtraction.
FAQ
- What grade level is Grade 1 Math: Addition & Subtraction to 20 for?
- This topic targets Grade 1.
- Are all difficulty levels free?
- Yes. Easy, medium, hard, and final exam sets are free in the GradeGrove library.