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Modular Math: Subtraction
Welcome to Subtraction, a key unit in our Modular Math program designed for students from Kindergarten through Grade 7/8. Beginning with the basics of “taking away,” students build confidence as they progress into borrowing and regrouping, subtracting with money, estimating, working with positive and negative numbers, and subtracting fractions. Along the way, they’ll also develop mental math strategies for faster, more efficient calculations.
As students move into the upper levels, they’ll begin applying subtraction within early algebra concepts, including equations, exponents, polynomials, and ratios. Our spiral and mastery approach introduces essential subtraction skills and continually reinforces them, helping students build strong, lasting mathematical understanding.
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Modular Math: Subtraction (Digital)

Modular Math: Subtraction Skill Builders
Yes, this works!
I'm just here to say how much I absolutely love Gather Round. Last year I was hesitant. Could it really work for my kids ages 7-15? Yup. It's amazing learning together at different levels. I'm so thankful!
Affordable and Easy!
We've used Gather Round for 4 years. I love how portable, flexible, and Bible-based it is. It's affordable compared to others too!
This is all I use!
Gather Round is perfect for a lazy, non-creative mom like me! Open-and-go simplicity mixed with deep thinking and beauty rooted in truth.
Amazing for High School!
We have three high school students. One is dual-enrolled in college already. Gather Round made homeschool manageable and complete!