What’s Your Identity? Number Mysteries Counting On and Back Number Riddles for Numbers to 120 by Learning Moore in First is a great way to practice this math skill. Included are game cards in which students are given a number mystery such as "What is 6 more than 28?" Other cards show a certain amount of base 10 blocks and students are asked "What is 7 more than this?" This way kiddos get practice with adding and subtracting with numerals and base 10 blocks too! All answers are recorded on the Student Recording Sheet- an answer key is provided. This activity would be a great addition to your math centers or rotations, especially sine once students are finished solving the mysteries, the cards can be used to play a "Top-It"/ War game in which students compare the answers to find the greater number to win cards from each other.
Black/White and Color Printing options both included.