Add and Subtract with Facts (up to 10)
Master quick addition and subtraction within 10 using smart strategies!
1st Grade - Math - Fluency and Strategies within 10
About This Skill
Develop fluency in addition and subtraction within 10 by using strategies such as counting on, making ten, doubles, and number bonds. Strengthen problem-solving skills and number sense through hands-on practice and visual representations, building a strong foundation for mental math.
Skills & Topics
- Number Sense and Operations
- Addition
- Subtraction
- Mental Math
- Adding
- Subtract
- Equations
- Sum
- Add
- Difference
- Fact Family
Curriculum Alignment
- 1.OA.C.6: Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
- AC9M1N04: add and subtract numbers within 20, using physical and virtual materials, part-part-whole knowledge to 10 and a variety of calculation strategies
- ENG-MATH-Y1-AS.2: Represent and use number bonds and related subtraction facts within 20.
- NY-1.OA.6b
- ZA.CAPS.MATH.G1.NOR.1.13