Number Sense Blog



December 2021 Math Activity: #NationalCookieDay

Dec 4, 2021

  Today is #NationalCookieDay and what better way to enjoy math than to incorporate it into a fun activity like baking cookies? Download our Snickerdoodle Baking Activity and Key, and share your cookie creations on social media! Be sure to tag ...



Great Gifts for Math Lovers 2021

Dec 1, 2021

  The holiday season is upon us, with gift-giving opportunities around every corner! Our annual Holiday Gift Guide can help you find the perfect gift for your favourite math-y people. From books to home-décor and everything in-between, you can’...



Ask Education: Getting into the Geometry Mindset

Nov 17, 2021

  Our expert team of math educators and enthusiasts has spent over 40 years developing and refining the most powerful teaching methods and materials into our comprehensive, industry-leading Mathnasium Method™. These “Ask Education” featu...



Mathnasium #MathTricks: Divisibility (General Rule for 11s)

Nov 10, 2021

To test if a number is divisible by 11, follow the general rule: the difference of the sum of alternating digits can be divided by 11.   To determine if the number 2,728 is divisible by 11, find the difference of the sum of alternating digit...



Mathnasium #MathTricks: Divisibility (3-digit Rule for 11s)

Nov 3, 2021

One way to test if a three-digit number is divisible by 11 is to follow the 3-digit rule: the sum of the first and last digits equals the middle digit.   To determine if the number 792 is divisible by 11, we find the sum of seven and two. Se...


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