• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Customer Service
  • My Account
  • Cart

RightStart™ Mathematics by Activities for Learning, Inc.

Menu
  • Curriculum
    • The RightStart™ Difference
    • RightStart™ for Home School
    • RightStart™ Tutoring
    • RightStart™ for Classrooms
    • Research
    • Spotlight on Kids
  • Games
  • Resources
    • Take the Placement Test
    • Recorded Webinars
    • Sample Lessons
    • Teaching Support
    • Levels G and H
    • Apps
    • Songs
    • Calendar
    • Social Media / Articles
    • FAQs
  • Blog
  • About
    • About the Author
    • Our Staff
    • Awards & Reviews
    • Customer Testimonials
    • Our Affiliate Program
  • Contact
    • Submit a Testimonial
    • Request a Presentation
    • Request an Event Speaker
    • Request a Classroom Quote
    • Request Professional Development
  • Placement Test
  • Shop

subtraction facts

Dr. Cotter on Addition and Subtraction Facts

September 25, 2018 by RightStart™ Math

Addition  Addition can be thought of as finding the whole when the parts are known. Place value greatly simplifies finding the sum of two numbers. To be efficient in adding, we start with the sums of numbers 1 + 1 through 9 + 9. These are best … [Read more...] about Dr. Cotter on Addition and Subtraction Facts

Filed Under: 2. Lessons, 3. Struggling Learner, 4. General Info, 6. Montessori, 7. Classroom Tagged With: addition, addition facts, dr. cotter, Dr. Joan A. Cotter, math, math facts, RightStart, RightStart Math, RightStart Mathematics, subtraction, subtraction facts

Primary Sidebar

60-Day Guarantee

60-Day Guarantee

Get Started Today

Shop Online

Footer

RightStart™ Mathematics logo
Shop Online Apps Customer Service
Copyright © 2023 Activities For Learning, Inc. | All Rights Reserved | Privacy Policy | Developed by Vivid Image
  • Facebook
  • Instagram
  • Pinterest
  • Twitter
  • YouTube
  • Curriculum
    • The RightStart™ Difference
    • RightStart™ for Home School
    • RightStart™ Tutoring
    • RightStart™ for Classrooms
    • Research
    • Spotlight on Kids
    • Back
  • Games
  • Resources
    • Take the Placement Test
    • Recorded Webinars
    • Sample Lessons
    • Teaching Support
    • Levels G and H
    • Apps
    • Songs
    • Calendar
    • Social Media / Articles
    • FAQs
    • RightStart™ Math Online Conference 2023
    • Back
  • Blog
  • About
    • About the Author
    • Our Staff
    • Awards & Reviews
    • Customer Testimonials
    • Our Affiliate Program
    • Back
  • Contact
    • Submit a Testimonial
    • Request a Presentation
    • Request an Event Speaker
    • Request a Classroom Quote
    • Request Professional Development
    • Back
  • Placement Test
  • Shop
  • Customer Service
  • My Account
  • Cart