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.
Similar Posts
By the Numbers
Would you believe it if I told you that there is one number whose letters are in alphabetical order! When you have picked yourself up off the floor from the shock of that, can you tell me what number it is?
What’s the Only 2-Digit Number that is Both a Cube and a Square?
There’s one number that equals something multiplied by itself, and something else cubed. Any idea what that special number is?
Using Math Magic to Make Some Money This Summer
Tell your parents that, being the good child that you are, you have decided that you would like to wash the dishes each night after dinner. You’d like to be paid a little for your services, but your wages are reasonable. You’d like to be paid 1 cent the first night, 2 cents the second…
Learn Magic: Lost at Sea
March is Pi Day. Here’s a fun math trick to amaze your friends! Ready to learn to perform this? Remember: Please don’t reveal the secret! Download your Lost at Sea Sheet. Two versions are enclosed: one with smaller numbers, and a challenge version with larger ones. This trick uses a magic square. Although there are…
Can You Draw this Diagram – Without Your Pencil Leaving the Paper?
You must be joking! No, we’re not. If the pencil moves across the paper, it must make a mark. Hint: This may entail some out of the box thinking!