Khan Academy vs Math Mammoth
The sharpest difference is screen time: Khan Academy is fully digital, Math Mammoth is fully offline. Four more separate them, so this is not a close pairing.
At a glance
Khan Academy
Grades K-12
Owners report it suits
Advanced/giftedMath Mammoth
Grades 1-8
Owners report it suits
Multi-age familiesMath-anxious parentsBoth are reported to suit Independent workers.
Skip to who fitsWhere they differ
| Attribute | Khan Academy | Math Mammoth |
|---|---|---|
Screen time
?How much daily work is on a device. Where a program lands on the 1 to 5 scale:
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Independence
?How much the child can do alone. Where a program lands on the 1 to 5 scale:
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| Approach | Spiral | Mastery |
| Format | Online | Workbook |
| Used as | Spine or supplement | Spine |
| Best for Tags show where owners consistently report a good fit. They are not exclusions. | Advanced/giftedIndependent workers | Independent workersMulti-age familiesMath-anxious parents |
| Method | TraditionalVideo-led/self-pacedAdaptive online | TraditionalConcrete-Pictorial-Abstract |
| Grades | K-12 | 1-8 |
Solid tags are unique to that program. Muted tags are carried by both.
Where they match
- Rigorboth on grade
- Parent involvementboth light
- Prep loadboth minimal
- Time commitmentboth 25 to 40 min
- Faith contentboth None
How each one plays by grade
Khan Academy runs 4 grades further than Math Mammoth. If you want one program to carry the subject for the long haul, plan on leaving Math Mammoth around grade 8 and choosing again.
Khan Academy
Grades K-12
Khan Academy Kids (ages 2-8) is the free early-grades app. The K-8 grade courses work well from about 3rd up, and the 8th-grade course reaches into Algebra 1 and high school geometry.
Math Mammoth
Grades 1-8
Independence is gated by reading, not by math. Grades 1 and 2 are parent-led in practice despite the text being written to the student, and owners are blunt that the self-teaching framing oversells it for weak readers. Grade 4 is a difficulty spike. Grade 7 is a standalone pre-algebra course and grade 8 covers only part of Algebra 1, so families bridge to a different publisher for high school.
Cost
| Cost item | Khan Academy | Math Mammoth |
|---|---|---|
| Price | Free | $42.50/grade digital, $225 for grades 1-8 |
| Consumable | No | Partial |
| Per child / year | $0 | ~$42, or ~$28 buying the full bundle |
What parents report
Khan Academy
Consistently praised
- It is completely free
- Videos are short and clear
- Great for catching up or filling gaps
- Bright kids can race ahead
- Sequence runs all the way to calculus
Reported as challenges
- Light on practice and review
- No built-in schedule or pacing
- Early grades move too fast for K-1
- Some kids do not retain without more repetition
Math Mammoth
Consistently praised
- About forty dollars a grade
- Kids read the lesson and go
- Visual models explain the why
- Reprint pages for every sibling
- No teacher manual to manage
Reported as challenges
- Pages look busy and text heavy
- Too many problems per page, so parents curate
- Light on built-in review compared to spiral programs
- Stops at grade 8 with no high school path
Who Khan Academy fits
Self-motivated kids who learn from video, and families who want a free option either as a full spine or as backup explanations alongside another program. Families who need heavy practice, built-in review, or a done-for-you daily plan should look at a spine like Teaching Textbooks or Math Mammoth and lean on Khan for the videos.
Read the full Khan Academy entry Check price Khan AcademyWho Math Mammoth fits
Fits budget-minded families with several kids, parents who want math off their plate without a screen, and fluent readers who can absorb a written explanation and get to work. Families who want video instruction, scripted teaching, or a program that carries them through high school won't find it here, and neither will anyone whose child isn't reading well yet.
Read the full Math Mammoth entry Check price Math MammothSome links on this site are affiliate links. If you buy through them we may earn a commission at no extra cost to you. It never changes how a curriculum is described or scored.
Still deciding?
Khan Academy compared with
Descriptions aggregate what homeschool parents consistently report across public community sources together with each publisher's own materials. Prices and editions change over time. Both entries last reviewed July 2026.