Treasure Diving: Subtraction Fact Families Within 10

9, 7, and 2: Look at these numbers and think about what subtraction equation would make sense. Not every combination works, but in the game Treasure Diving: Subtraction Fact Families Within 10, first graders will pick the correct subtraction equation out of three choices. Every correct answer takes young learners closer to a hidden treasure, and closer to mastering fact families!