Welcome to the All Girls Math Tournament Website!

The annual All Girls Math Tournament is a math competition for girls in grades 3 to 8.  Our tournament combines competition-style math problems with collaborative team activities. Each tournament features a presentation from a keynote speaker about the role of mathematics in her career.

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Problem of the Month

  • Since Valentine’s Day was coming up, if I give the same amount of valentines to 8 people, I will have 5 left over. If If I give the same amount of valentines to 10 people, I will have 7 left over. If I have more than 50 valentines, but less than 100, how many valentines do I have? (Please leave answers in terms of pi)

    Remember to send all answers to allgirlsmathtournament@gmail.com.

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  • In the beautiful ski resort of Snowy Pines, there was lots of snowfall this week. On Monday, the depth of the snow increased by 5 inches. On Tuesday, the depth of the snow was twice the depth of Monday. On Wednesday, the depth of the snow increased by another 8 inches. On Thursday, it was a nice sunny day, so 1/3 of the snow melted. If the snow is 2 ft deep by the end of Thursday, how deep was the snow on Sunday?

    Remember to send all answers to allgirlsmathtournament@gmail.com.

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  • money

    Three girls rent a hotel room for the night. When they get to the hotel they pay the $30 fee, then go up to their room. Soon the bellhop brings up their bags and gives the girls back $5 because the hotel was having a special discount that weekend. So the three girls decide to each keep one of the $5 dollars and to give the bellhop a $2 tip. However, when they sat down to tally up their expenses for the weekend the could not explain the following details:
    Each one of them had originally paid $10 (towards the initial $30), then each got back $1 which meant that they each paid $9. Then they gave the bellhop a $2 tip. HOWEVER, 3 * $9 + $2 = $29
    The girls couldn’t figure out what happened to the other dollar. After all, the three paid out $30 but could only account for $29.
    Can you determine what happened?
    Remember to send all answers to 

    allgirlsmathtournament@gmail.com.

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