5+5+5=550
Challenge: Can you draw 1 line to make this equation true? (Changing the equals sign to not equals is not permitted!)
Stumped? Here’s how.
Add a vertical line to 1 of the plus signs, changing it to a 4! Then you have 545+5=550.
Challenge: Can you draw 1 line to make this equation true? (Changing the equals sign to not equals is not permitted!)
Stumped? Here’s how.
Add a vertical line to 1 of the plus signs, changing it to a 4! Then you have 545+5=550.
What is the only number whose letters are in reverse alphabetical order?
Half of 8 is 3, you claim. And you can prove it! Do you know how?
Here are your clues. If you get it right, there will be words formed not only in each row, but also in each column, and diagonal. A magic square crossword puzzle! Across:
March is the month of Pi Day (3/14). So, what a great time for you to entertain friends and family with a little math magic! This one is funny as well as impressive. Want to perform this trick? Here’s how:
Challenge: Can you write “100” without the pen leaving the paper? No marks should be visible connecting the numbers. And the pen must make a mark whenever it moves across the paper. Impossible? Or can it be done?
There are 2 arrows in this diagram. Can you draw only 2 lines to create the 3rd arrow?
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