Have your students explore numbers 1-1000 with these clue challenges. Using the provided 1000's chart, students read each clue and gradually eliminate all possibilities to arrive at the answer. Clues are based on more, less, odd, even, addition, skip counting and place value.
Answers are provided for each clue card so students can self check. There are 2 different sets of cards. Each set has 26 cards.
This makes a great Math Center.