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Posts tagged with puzzles

A Fishy Puzzle

November20

Here is the challenge with this puzzle – turn the fish around by moving just 3 matches and with no overlapping.

Sagrada Familia holds Mathematical Mysteries

October24

Number Puzzles in the Magic Square on the spectacular Sagrada Familia: H3 was recently in Barcelona and captivated by the soaring delights on this magnificent cathedral-in-progress (it is hoped to finish the building by 2026). Outside, among the modern sculptures of biblical characters is a magic square. It has hidden meanings. For example, the numbers […]

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Math is the Best Way to Make Sense of the World

March10

When Rebecca Goldin spoke to a recent class of incoming freshmen at George Mason University, she relayed a disheartening statistic: According to a recent study, 36 percent of college students don’t significantly improve in critical thinking during their four-year tenure. “These students had trouble distinguishing fact from opinion, and cause from correlation,” Goldin explained. She […]

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Another Math IQ

October11

See Post Support for the pattern

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Have you taken your daily dose of bedtime math?

January28

Finally, someone else gets it too – doing Mathematics should be fun and a regular dose of fun math on a daily basis will certainly help. The mission of Bedtime Math is, “…to help kids love numbers so they can handle the math in real life.” This site brings a host of interesting math facts, […]

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No, we are not selling you a book, but…

July16

The book title “How to Be a Math Genius” caught our attention at H3! It sure looks enticing and even the review is very positive – after all, how many 11 year olds will want to bring a Math book to read while having dinner? Reviewer Mark Frauenfelder writes, “I enjoyed learning about statistics, probability, […]

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More Math Puzzles

June19

A school bus travels from Veldhoven to Roosendaal. There are four children in the bus. Each child has four backpacks with him. There are four dogs sitting in each backpack. Every dog has four puppies with her. All these dogs have four legs, with four toes at each leg. What is the total number of […]

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Mathematics Puzzles

November19

I don’t know about you, but solving puzzles is great mathematical fun, including the logic ones. This site by Maths is Fun has a range of great puzzles for you to try in your spare time!

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Post Support

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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