info@mathkangaroocanada.com
Joined June 2015
- Tweets 213
- Following 95
- Followers 293
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43 Photos and videos
21 Feb 2023
Last chance to register for the Canadian Math Kangaroo contest on March 19, 2023! Deadline is February 26 at mathkangaroo.ca. Questions? Email info@mathkangaroocanada.com
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2 Jan 2023
The contest is available in both English and French, in-person and online, for student in Canada. Special conditions apply for the online participation.
Training classes are available.
Register at mathkangaroo.ca/.
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14 Dec 2022
A thread of the first 2 weeks in the 2022 #mathadvent from @CMKContest
(a 12-tweet🚂polar express🚂of math challenges)
Days 1 and 2:
x.com/CMKContest/status/1598…
1 Dec 2022
Let us start a #mathadvent! Day 1
🍃🌲
Tell me, on this first of December:
What is this digit that I remember?
When added to 6 or divided by 3
It changes, but it doesn't cease to be
A positive digit.
☃️🏂
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14 Dec 2022
Day 14, feeling adventurous with a small animation: can you picture the solid gemstone?
x.com/CMKContest/status/1603…
14 Dec 2022
On day 14 of the #mathadvent, more geometry!
Six-sided figure in my hand
It's one face of a solid gem
Lights out, I'm trying to understand
Gem's facets, ₐₜ least how many of them?
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29 Dec 2022
You can find the rest of the 25 puzzles in the thread below:
x.com/CMKContest/status/1607…
27 Dec 2022
Here is a compilation of the second part of our Math Advent Calendar 2022. You can find all tweets under the #mathadvent hashtag
Day 15, factoring and number theory:
x.com/CMKContest/status/1603…
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Math Kangaroo retweeted
28 Dec 2022
Si vous effectuez le produit de quatre nombres entiers consécutifs et que vous ajoutez 1, vous obtenez un carré parfait.
Exemple: 4 × 5 × 6 × 7 1 = 841 = 29²
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Math Kangaroo retweeted
25 Dec 2022
Le nombre premier 1111114111144441142411444411114111111 (qui forme un palindrome) peut être disposé en étoile à 6 branches. Si vous concaténez le nombre de chiffres par ligne (1, 2, 7, 6, 5, 6, 7, 2, 1), vous obtenez aussi un nombre premier (qui est aussi un palindrome).
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27 Dec 2022
Here is a compilation of the second part of our Math Advent Calendar 2022. You can find all tweets under the #mathadvent hashtag
Day 15, factoring and number theory:
x.com/CMKContest/status/1603…
15 Dec 2022
Day 15 of #mathadvent brings a tanka:
The largest digit.
Check if your number can be
divided by 𝖎𝖙:
add up the digits, again
ask if 𝖎𝖙's the sum's factor.
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27 Dec 2022
Day 24, algebra and numbers:
x.com/CMKContest/status/1606…
24 Dec 2022
Day 24 of #mathadvent
Just 2 more, just 2 more!
What's 20% of a score?
A score is the English word for twenty:
20% of it's this many.
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27 Dec 2022
Day 25, 3D geometry and factoring, was a retelling of a beautiful problem from the 2003 Math Kangaroo contest, grade 7-8.
(It was another tough one, but you can try factors and find the answer with ease, or draw a picture!)
x.com/CMKContest/status/1607…
25 Dec 2022
Day 25 (final day) of #mathadvent:
42 sugar cubes packed in one box,
Its bottom's length width is 9 sugar-cube-sides.
Measured in sugar cubes, please work out the box's
sugar-cube height?
Merry Christmas to all who mark it! Find more math puzzles at mathkangaroo.ca/samples/en
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25 Dec 2022
Day 25 (final day) of #mathadvent:
42 sugar cubes packed in one box,
Its bottom's length width is 9 sugar-cube-sides.
Measured in sugar cubes, please work out the box's
sugar-cube height?
Merry Christmas to all who mark it! Find more math puzzles at mathkangaroo.ca/samples/en
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25 Dec 2022
(For example, today's puzzle is a retelling of a 2003 grade 7-8 contest question: can you spot the original version? mathkangaroo.ca/samples/2003…)
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24 Dec 2022
🎄🔔Hark how the bells 🔔🎄
Sweet silver bells
All seem to say
Throw cares away
Happy #ChristmasEve to all who celebrate!
19 Sep 2022
There’s loads of connections between maths and bellringing 🤓
Instead of tunes, ringers memorise sequences of changes - permutations where each bell can only swap with the one immediately before or after. In the video above, 11 bells move with the 12th always ringing last.
ALT The changes of a plain course of Stedman Cinques written out in numbers, with a blue line drawn through the treble’s path.
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