Help your students build their number sense through math talk and these mystery number pages. Students become detectives and have to use clues to discover the mystery number on the 120 charts. Use these to formatively assess your students, work with in small groups or even as extensions for early finishers.
Clues use math vocabulary: greater than, less than, value, digit, sum, difference, tens, ones, hundreds, place value
Students are able to check their answers by scanning the qr code when they are finished. \