In this Place Value Mystery Exercise Set, there are 8 activities, which all include answer keys.
Concepts include: Identifying the value of the underlined digit, identifying the expanded form of a number, reading the word form of a number and finding the standard form, and identifying the value of base ten blocks.
Basically, students will answer questions 1-8, then find the answer in the KEY, and will have to write the corresponding letter in the Mystery Exercise Box. At the end, the students will "crack the code" and will be given an exercise! So, after sitting and answering questions, we are giving the kids a break by allowing them to perform an exercise!