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Is This Prime? VS Four Seconds

Compare Is This Prime? VS Four Seconds and see what are their differences

FlexiQuiz
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Is This Prime? logo Is This Prime?

Can you tell which numbers are prime?

Four Seconds logo Four Seconds

A timer and a simple rule: stop it at exactly four seconds.
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Is This Prime? videos

No Is This Prime? videos yet. You could help us improve this page by suggesting one.

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Four Seconds videos

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Four Seconds - Peter Bregman - Book Review.

More videos:

  • Review - BOOK REVIEW - FOUR SECONDS

Category Popularity

0-100% (relative to Is This Prime? and Four Seconds)

Is This Prime?

Four Seconds

Kids
15 15%
Kids
85% 85
Tech
100 100%
Tech
0% 0
Education
15 15%
Education
85% 85
Spaced Repetition
0 0%
Spaced Repetition
100% 100

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What are some alternatives?

When comparing Is This Prime? and Four Seconds, you can also consider the following products

Cotrio - The most beautiful way to move your brain and imagination

Wikids - An encyclopedia that talks to your kids

Easy Sight Words - Easy to Learn Sight Words!

Numito - Word and number puzzles game, similar to Countdown GameShow

Litnerd - The Pixar for education, reading program for K-5 schools

DragonBox Numbers - Teach kids about numbers with an easy and fun game

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