teaching resource

What's My Card? Triple-Digit Board Game

Teach Starter Publishing
Google Slide, PDF, Word | 7 pages | Years: 2 - 4

Guess the mystery 3 digit numbers by asking your opponent a series of elimination questions.

What You’ll Need for This Place Value Game

In this two-player game, students ask questions to determine the correct 3-digit number on their opponent’s mystery card.

To play this maths board game, you will need:

  • 1 × Guess Who? board game (purchased from a toy store)
  • 2 × sets of game cards (to be inserted in the Guess Who? game boards before play)
  • 1 × set of mystery cards.

How to Play What’s My Card?

Players choose a mystery card from the deck and place it in the front card holder of their Guess Who? game board. They put their game cards in the flippable card holders. 

One player begins by asking their opponent a question about a characteristic found on their 24 visible game cards in the flip card holders, such as:

  • Does your mystery number have a 1 in the tens place?
  • Is your mystery number lower than 500?
  • Is the first number 5?

If their opponent says ‘Yes’, the asking player flips over all the cards that do not contain that characteristic. If the opponent says ‘No’, the asking player flips over the cards containing that characteristic.

Play continues with players taking turns to ask questions. Through a process of elimination, players will eventually be able to ‘guess’ the name of their opponent’s mystery card.

Scaffolding + Extension Tips 

Support students who need help understanding the concepts by referring them to a place value chart, numbers board, or another visual resource. 

Challenge students who already understand the concept to identify 3-digit numbers by only the digits in each place value. For example, “Does your card have a 1 in the hundreds place?” or “Does your card have a 2 in the tens place?”

3 Ways to Get More from This Game

A team of dedicated, experienced educators created this resource for students to work on as part of your maths groups

Check out our suggestions for using this resource to reinforce understanding of 3-digit numbers!  

🧠 Memory Match

Bonus points for this version of the game as it helps students with their memorisation skills! Students will shuffle both sets of cards and lay them all face down in equal rows. Either as a 1- or 2-player game, students flip two cards at a time until they find a match and set the pair aside to keep score. 

🤞 Snap 

Deal out all cards face down in a pile in front of each player. Players take turns flipping their top card face up, starting a stack of cards next to their face-down cards. When a player flips a card that matches one already face-up on another player’s pile, the first person to notice the match yells “Snap!” and wins both their piles, placing the cards to the bottom of their face-down pile. If a player runs out of face-down cards, they flip their face-up stack over and re-use them. When two players shout “Snap!” simultaneously, the two piles are combined and placed in the centre in a “Snap Pot,” and play continues. If someone spots a card that matches the card on top of the Snap Pot, they shout “Snap Pot!” and claim the cards. 

🐟 Go Fish

It’s easy to turn these cards into a game of Go Fish! Shuffle the cards and pass out 7 to each player. The remaining cards go in the centre of the play area. Taking turns, players ask each other for matches. 

Easily Prepare This Resource for Your Students

Use the dropdown icon on the Download button to choose between colour or black and white PDF, and Google Slides versions of this resource. 

Print on cardstock for added durability and longevity. Place all pieces in a folder or large envelope for easy access. 


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